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300-115

Number: 300-115
Passing Score: 800
Time Limit: 120 min
File Version: 9.2

300-115
Implementing Cisco IP Switched Networks
Version 9.2
Sections
1. Layer 2 Technologies
2. Infrastructure Security
3. Infrastructure Services
4. Mix QUESTIONS

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Exam A
QUESTION 1
What is the maximum number of switches that can be stacked using Cisco StackWise?
A.
B.
C.
D.
E.
F.

4
5
8
9
10
13

Correct Answer: D
Section: Layer 2 Technologies
Explanation
Explanation/Reference:
Explanation:
Up to 9 Cisco Catalyst switches can be stacked together to build single logical StackWise switch since Cisco IOS XE Release 3.3.0SE. Prior to Cisco
IOS XE Release3.3.0SE, up to 4 Cisco Catalyst switches could be stacked together.
Reference: http://www.cisco.com/c/en/us/products/collateral/switches/catalyst-3850-series- switches/qa_c67-722110.html
QUESTION 2
A network engineer wants to add a new switch to an existing switch stack. Which configuration must be added to the new switch before it can be added
to the switch stack?
A.
B.
C.
D.
E.

No configuration must be added.
stack ID
IP address
VLAN information
VTP information

Correct Answer: A
Section: Layer 2 Technologies
Explanation
Explanation/Reference:
Explanation:
Switch Stack Offline Configuration

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You can use the offline configuration feature to provision (to supply a configuration to) a new switch before it joins the switch stack. You can configure in
advance the stack member number, the switch type, and the interfaces associated with a switch that is not currently part of the stack. The configuration
that you create on the switch stack is called the provisioned configuration . The switch that is added to the switch stack and that receives this
configuration is called the provisioned switch.
You manually create the provisioned configuration through the switch stack-member-number provision type global configuration command. The
provisioned configuration is automatically created when a switch is added to a switch stack and when no provisioned configuration exists.
When you configure the interfaces associated with a provisioned switch (for example, as part of a VLAN), the switch stack accepts the configuration,
and the information appears in the running configuration. The interface associated with the provisioned switch is not active, operates as if it is
administratively shut down, and the no shutdown interface configuration command does not return it to active service. The interface associated with the
provisioned switch does not appear in the display of the specific feature; for example, it does not appear in the show vlan user EXEC command output.
The switch stack retains the provisioned configuration in the running configuration whether or not the provisioned switch is part of the stack. You can
save the provisioned configuration to the startup configuration file by entering the copy running-config startup-config privileged EXEC command. The
startup configuration file ensures that the switch stack can reload and can use the saved information whether or not the provisioned switch is part of the
switch stack.
Effects of Adding a Provisioned Switch to a Switch Stack
When you add a provisioned switch to the switch stack, the stack applies either the provisioned configuration or the default configuration. lists the events
that occur when the switch stack compares the provisioned configuration with the provisioned switch.

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www.VCE to PDF Converter .VCE Exam Simulator .com .VCE Online .vceplus.IT Certifications .Download A+ VCE (latest) free Open VCE Exams .

A break in any one of the cables will result in the stack bandwidth being reduced to half of its full capacity.VCE to PDF Converter .VCE Exam Simulator . www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/12.com . B. Cisco StackWise Technology Resilient Cabling Reference: http://www.IT Certifications .VCE Online .switches/prod_white_paper09186a00801b096a.2_55_se/configuration/guide/3750xscg/swstack. 0 25 50 75 100 Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Physical Sequential Linkage The switches are physically connected sequentially.com/c/en/us/products/collateral/switches/catalyst-3750-series. Figure 3.Reference: http://www. Subsecond timing mechanisms detect traffic problems and immediately institute failover. C. E. D.vceplus. as shown in Figure 3.cisco. This mechanism restores dual path flow when the timing mechanisms detect renewed activity on the cable.html QUESTION 3 What percentage of bandwidth is reduced when a stack cable is broken? A.Download A+ VCE (latest) free Open VCE Exams .html QUESTION 4 Refer to the exhibit.

switch1 channel-group 1 mode active switch2 channel-group 1 mode auto B. switch1 channel-group 1 mode desirable switch2 channel-group 1 mode auto www.com .IT Certifications . switch1 channel-group 1 mode on switch2 channel-group 1 mode auto D. switch1 channel-group 1 mode desirable switch2 channel-group 1 mode passive C.VCE to PDF Converter .Which set of configurations will result in all ports on both switches successfully bundling into an EtherChannel? A.Download A+ VCE (latest) free Open VCE Exams .VCE Online .VCE Exam Simulator .vceplus.

com/c/en/us/td/docs/switches/lan/catalyst3550/software/release/12-1_13_ea1/configuration/guide/3550scg/swethchl.Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: The different etherchannel modes are described in the table below: Both the auto and desirable PAgP modes allow interfaces to negotiate with partner interfaces to determine if they can form an EtherChannel based on criteria such as interface speed and.com .VCE to PDF Converter . trunking state and VLAN numbers. An interface in the on mode that is added to a port channel is forced to have the same characteristics as the already existing on mode interfaces in the channel.VCE Exam Simulator . for Layer 2 EtherChannels.html QUESTION 5 Refer to the exhibit. www.vceplus. An interface in the auto mode cannot form an EtherChannel with another interface that is also in the auto mode because neither interface starts PAgP negotiation.IT Certifications . Interfaces can form an EtherChannel when they are in different PAgP modes as long as the modes are compatible. • An interface in the auto mode can form an EtherChannel with another interface in the desirable mode. Reference: http://www.cisco.VCE Online . For example: • An interface in the desirable mode can form an EtherChannel with another interface that is in the desirable or auto mode.Download A+ VCE (latest) free Open VCE Exams .

VCE Exam Simulator . VLAN filtering refers to analyzing network traffic on a selected set of VLANs on trunk source ports. use the monitor session filter global configuration command. You select a series or range of VLANs by using the [ . You can have a total of 66 SPAN and RSPAN sessions on a switch or switch stack.vceplus. By default. C. you must enter a space before and after the comma. You can use the monitor session session_number filter vlan vlan-id command to limit SPAN traffic on trunk source ports to only the specified VLANs.Download A+ VCE (latest) free Open VCE Exams . You can monitor traffic on a single VLAN or on a series or range of ports or VLANs. www.VCE to PDF Converter . If you specify a series of VLANs. Add an access list to GigabitEthernet0/48 to filter out traffic that is not in VLAN 10.com . Change the configuration for GigabitEthernet0/48 so that it is a member of VLAN 10. Usage Guidelines You can set a combined maximum of two local SPAN sessions and RSPAN source sessions. B. Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: To start a new flow-based SPAN (FSPAN) session or flow-based RSPAN (FRSPAN) source or destination session. If you specify a range of VLANs.VCE Online . Change the monitor session source to VLAN 10 instead of the physical interface. | -] options. Apply the monitor session filter globally to allow only traffic from VLAN 10. all VLANs are monitored on trunk source ports.How can the traffic that is mirrored out the GigabitEthernet0/48 port be limited to only traffic that is received or transmitted in VLAN 10 on the GigabitEthernet0/1 port? A.IT Certifications . or to limit (filter) SPAN source traffic to specific VLANs. you must enter a space before and after the hyphen ( -). D.

com/c/en/us/td/docs/switches/lan/catalyst3850/software/release/3se/network_m anagement/command_reference/b_nm_3se_3850_cr/ b_nm_3se_3850_cr_chapter_010. VLAN filtering cannot be enabled. a VLAN cannot become a source. A network engineer wants to analyze all incoming and outgoing packets for an interface that is connected to an access switch. If VLAN filtering is configured.vceplus. B.) A.VLAN monitoring and VLAN filtering are mutually exclusive. Which three items must be configured to mirror traffic to a packet sniffer that is connected to the distribution switch? (Choose three. D.IT Certifications . A monitor session on the distribution switch with a physical interface as the source and the remote SPAN VLAN as the destination A remote SPAN VLAN on the distribution and access layer switch A monitor session on the access switch with a physical interface source and the remote SPAN VLAN as the destination A monitor session on the distribution switch with a remote SPAN VLAN as the source and physical interface as the destination A monitor session on the access switch with a remote SPAN VLAN source and the physical interface as the destination A monitor session on the distribution switch with a physical interface as the source and a physical interface as the destination Correct Answer: BCD Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: www. E. C.VCE Exam Simulator .VCE Online . Reference: http://www. If a VLAN is a source.VCE to PDF Converter .Download A+ VCE (latest) free Open VCE Exams .html#wp3 875419997 QUESTION 6 Refer to the exhibit.com .cisco. F.

cisco. interface port channel 1 is in the down/down state.VCE Exam Simulator . The destination is always a physical port Reference: http://www.You can analyze network traffic passing through ports or VLANs by using SPAN or RSPAN to send a copy of the traffic to another port on the switch or on another switch that has been connected to a network analyzer or other monitoring or security device.VCE Online .com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/12. which is an LACP mode.com . The traffic for each RSPAN session is carried over a user-specified RSPAN VLAN that is dedicated for that RSPAN session in all participating switches.vceplus.VCE to PDF Converter . The switch ports are not configured in trunking mode. Each RSPAN source switch must have either ports or VLANs as RSPAN sources. which is a PAGP mode. The channel group identifier must be different for Switch A and Switch B. B. C. The RSPAN traffic from the source ports or VLANs is copied into the RSPAN VLAN and forwarded over trunk ports carrying the RSPAN VLAN to a destination session monitoring the RSPAN VLAN. Switch A is configured with channel-group 1 mode active. source VLANs.Download A+ VCE (latest) free Open VCE Exams . RSPAN supports source ports.IT Certifications .html QUESTION 7 After an EtherChannel is configured between two Cisco switches. and destination ports on different switches (or different switch stacks). LACP priority must be configured on both switches. enabling remote monitoring of multiple switches across your network. The switches are using mismatched EtherChannel negotiation modes. You can not mix the LACP and PAGP protocols to form an etherchannel. and the other is using desirable. D.2_55_se/configuration/guide/3750xscg/swspan. Here is a summary of the various etherchannel modes: www. Why is the EtherChannel bundle not working? A. SPAN copies (or mirrors) traffic received or sent (or both) on source ports or source VLANs to a destination port for analysis. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Here we have a situation where one switch is using active mode. while Switch B is configured with channel-group 1 mode desirable.

2_55_se/configuration/guide/scg_2960/swethchl. B.VCE Online . Enable Cisco Express Forwarding to allow for more effective traffic sharing over the EtherChannel bundle. Reference: http://www. The network administrator noticed that only one of the EtherChannel links is being utilized to reach the web server.com . What should be done on the Cisco switch to allow for better EtherChannel utilization to the corporate web server? A.VCE to PDF Converter .cisco.VCE Exam Simulator . www. Disable spanning tree on all interfaces that are participating in the EtherChannel bundle.html QUESTION 8 An EtherChannel bundle has been established between a Cisco switch and a corporate web server.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12. C. This setting minimizes the transmission of LACP packets.IT Certifications . but does not start LACP packet negotiation.Passive Places a port into a passive negotiating state in which the port responds to LACP packets that it receives.Download A+ VCE (latest) free Open VCE Exams . Adjust the EtherChannel load-balancing method based on destination IP addresses.vceplus.

The mode you select applies to all EtherChannels that you configure on the switch. Use of source addresses or IP addresses can result in a better load balance. D. 52 What is the result of the implemented command? A. The trunk's native VLAN must be changed to something other than VLAN 1. 39. 39.html QUESTION 9 Interface FastEthernet0/1 is configured as a trunk interface that allows all VLANs. 9 Reference: http://www.cisco. destination mode. Use the option that provides the greatest variety in your configuration. Traffic from VLAN 4 is not sent to the SPAN destination interface.com/c/en/us/td/docs/switches/lan/catalyst4500/12. and either source mode. E. For example.VCE Exam Simulator . or Layer 4 port numbers. Use link-state tracking to allow for improved load balancing of traffic upon link failure to the server.html/index. if the traffic on a channel only goes to a single MAC address (which is the case in this example.D. Correct Answer: E Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: EtherChannel load balancing can use MAC addresses. use of the destination MAC address results in the choice of the same link in the channel each time.VCE Online . IP addresses. Adjust the EtherChannel load-balancing method based on source IP addresses. B. Traffic from VLANs 1 to 8.IT Certifications . All VLAN traffic is sent to the SPAN destination interface.cisco.html#wp1066836 www. Reference: http://www.vceplus. C. Correct Answer: E Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: The "monitor session filter" command is used to specify which VLANS are to be port mirrored using SPAN. and 52 is replicated to the SPAN destination port.com/c/en/us/support/docs/lan-switching/etherchannel/12023-4. or both. This example shows how to monitor VLANs 1 through 5 and VLAN 9 when the SPAN source is a trunk interface: Switch(config)# monitor session 2 filter vlan 1 5 .com . This command is configured globally: monitor session 2 filter vlan 1 8. Filtering a trunked SPAN port effectively disables SPAN operations for all VLANs.2/25ew/configuration/guide/conf/span.VCE to PDF Converter .Download A+ VCE (latest) free Open VCE Exams . since all traffic is going to the same web server). E.

only the physical port that it connects to will be seen as a CDP neighbor. B. such as the Cisco Discovery Protocol (CDP). IP routing is disabled on neighboring devices. Cisco Discovery Protocol advertisements are inconsistent between the local and remote devices. a network engineer notices that directly connected devices that use Cisco Discovery Protocol are not visible. Reference: http://en. C.com .org/wiki/Link_Layer_Discovery_Protocol www. The routers are connected via a Layer 2 switch. What would cause the output to show only the single neighbor? A. but not necessarily the logical topology.IT Certifications . CDP can be used to determine the physical topology. and neighbors on an IEEE 802 local area network. then each router will only have the single switch port that it connects to as its neighbor. The engineer notices only a single neighbor that uses Cisco Discovery Protocol. Cisco Express Forwarding is enabled locally. D.VCE to PDF Converter . C. but it has several routing neighbor relationships. D. LLDP performs functions similar to several proprietary protocols.vceplus. B.VCE Online . principally wired Ethernet.VCE Exam Simulator .QUESTION 10 A network engineer notices inconsistent Cisco Discovery Protocol neighbors according to the diagram that is provided. Even though multiple routing neighbors can be formed over a layer 2 network. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: If all of the routers are connected to each other using a layer 2 switch. QUESTION 11 After the implementation of several different types of switches from different vendors. Local Area Mobility Link Layer Discovery Protocol NetFlow Directed Response Protocol Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: The Link Layer Discovery Protocol (LLDP) is a vendor-neutral link layer protocol in the Internet Protocol Suite used by network devices for advertising their identity. Which vendor-neutral protocol could be used to resolve this issue? A. capabilities.Download A+ VCE (latest) free Open VCE Exams .wikipedia.

Remove the VTP domain name from all switches with "null" and then replace it with the new domain name.VCE to PDF Converter . Verify these items if switches that run VTP fail to exchange VLAN information: • VTP information only passes through a trunk port. which supports extended VLAN propagation. D. make sure that the password is the same on both sides.Download A+ VCE (latest) free Open VCE Exams . and version. Make sure that if EtherChannels are created between two switches. B.IT Certifications . If any password is set. There are several reasons why the VLAN information can fail to be exchanged. • Make sure that no password is set between the server and client.VCE Online . Provision one of the new switches to be the VTP server and duplicate information from the existing network. VLANs are not passing from the VTP server (existing network) to the VTP clients. Extended VLANs will not propagate to different IOS versions when extended VLANs are in use.cisco. Configure a differe"t na"ive VLAN on all new switches that are configured as VTP clients. • One of the switches must be the VTP server in a VTP domain. password. Ensure that all switch interconnects are configured as trunks to allow VTP information to be transferred. CISCO and cisco are two different domain names. VTP does not support extended VLANs and should be manually added to all switches. All VLAN changes must be done on this switch in order to have them propagated to the VTP clients. VTP authentication is required when using extended VLANs because of their ability to cause network instability.VCE Exam Simulator . only Layer 2 EtherChannels propagate VLAN information.shtml QUESTION 13 After implementing VTP. • Make sure that the VLANs are active in all the devices. B. C. Reference: http://www. D.vceplus.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080890613. • The VTP domain name must match and it is case sensitive. Make sure that all ports that interconnect switches are configured as trunks and are actually trunking. C. What should be configured for extended VLANs? A. Enable VTP version 3. However. Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: VTP allows switches to advertise VLAN information between other members of the same VTP domain. Ensure that all switches run the same Cisco IOS version. All of the new switches have been configured with the same VTP domain. VTP allows a consistent view of the switched network across all switches.QUESTION 12 Several new switches have been added to the existing network as VTP clients. the extended VLANs are not being propagated to other VTP switches.com . Correct Answer: B Section: Layer 2 Technologies www. What must be done to fix this? A.

pdf QUESTION 14 Refer to the exhibit.VCE Exam Simulator . www. and C are trunked together and have been properly configured for VTP. You must configure extended-range VLANs manually on each network device.VCE to PDF Converter .cisco.range VLANs (VLAN numbers 1006 to 4094). A VTP transparent switch does not advertise its VLAN configuration and does not synchronize its VLAN configuration based on received advertisements. Switch B is configured in transparent mode. The trunk between Switch A and Switch B is misconfigured.1SY/config_guide/sup2T/vtp .com/en/US/docs/switches/lan/catalyst6500/ios/15.com . Switch A. The VTP revision number of the Switch B is higher than that of Switch A. VTP version 3 supports extended-range VLANs (VLAN numbers 1006 to 4094). D. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: VTP transparent switches do not participate in VTP. If you convert from VTP version 3 to VTP version 2. B. Switch B is configured with an access port to Switch A. B. but Switch B does not receive any VLAN information.VCE Online . the VLANs in the range 1006 to 4094 are removed from VTP control. but transparent switches do forward VTP advertisements that they receive out their trunk ports in VTP Version 2. What is the most probable cause of this behavior? A. while Switch C is configured with a trunk port to Switch B.IT Certifications . Switch C receives VLAN information from the VTP server Switch A.Explanation Explanation/Reference: Explanation: VTP version 1 and VTP version 2 do not propagate configuration information for extended. C.Download A+ VCE (latest) free Open VCE Exams . Reference: http://www.vceplus.

The trunk between Switch A and Switch B is misconfigured.vceplus. VTP pruning is configured globally on all switches and it removed VLANs from the trunk interface that is connected to Switch C. Switch B has all VLANs.Download A+ VCE (latest) free Open VCE Exams . and C are trunked together and have been properly configured for VTP.VCE Online . VTP pruning is disabled by default.com .IT Certifications . The VTP revision number of Switch B is higher than that of Switch A. QUESTION 16 After the recent upgrade of the switching infrastructure. Without VTP pruning. What would cause this issue? A. VTP pruning blocks unneeded flooded traffic to VLANs on trunk ports that are included in the pruning-eligible list. D. A VTP authentication mismatch occurred between Switch A and Switch B. is that VTP pruning has been configured.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080094c52. C.Reference: http://www. B." What is the reason for this change? www.VCE to PDF Converter . Switch A. the network engineer notices that the port roles that were once "blocking" are now defined as "alternate" and "backup.shtml QUESTION 15 Refer to the exhibit. a switch floods broadcast. multicast. and unknown unicast traffic across all trunk links within a VTP domain even though receiving switches might discard them. but Switch C is not receiving traffic from certain VLANs. The best explanation for why switch C is not seeing traffic from only some of the VLANs. B. Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: VTP pruning increases network available bandwidth by restricting flooded traffic to those trunk links that the traffic must use to reach the destination devices.VCE Exam Simulator .cisco.

html QUESTION 17 An administrator recently configured all ports for rapid transition using PortFast. D. a network administrator can manually disable a port Reference: http://www. C. The link type is automatically derived from the duplex mode of a port.A forwarding port that is the closest to the root bridge in terms of path cost * Designated port .com . Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: RSTP can only achieve rapid transition to the forwarding state on edge ports and on point-to. A port that operates in full-duplex is assumed to be point-to-point. IEEE 802. The new switches are using RSTP instead of legacy IEEE 802.protocol/24062-146. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: RSTP works by adding an alternative port and a backup port compared to STP. it has been determined that several ports are not transitioning as they should. * Backup port . B.Not strictly part of STP. This path is different than using the root port. RSTP has been enabled per interface and not globally.cisco.1D STP and PortFast have been configured by default on all newly implemented Cisco Catalyst switches.1D STP. The port roles have been adjusted based on the interface bandwidth and timers of the new Cisco Catalyst switches. The administrator has defined the switch as the root in the STP domain. C. The STP root bridge selection is forcing key ports to remain in non-rapid transitioning mode. The backup port applies only when a single switch has two links to the same segment (collision domain).com/c/en/us/support/docs/lan-switching/spanning-tree. * Disabled port . What is the reason for this? A. not on trunk links. After testing.A backup/redundant path to a segment where another bridge port already connects.IT Certifications . B.vceplus.A forwarding port for every LAN segment * Alternate port .point links. the switch must be attached to a hub.VCE to PDF Converter . while a half-duplex port is considered as a www. These ports are allowed to immediately enter the forwarding state rather than passively wait for the network to converge. The switch does not have the processing power to ensure rapid transition for all ports.Download A+ VCE (latest) free Open VCE Exams . To have two links to the same collision domain. The alternative port moves to the forwarding state if there is a failure on the designated port for the segment. STP is unable to achieve rapid transition for trunk links. RSTP bridge port roles: * Root port .A. D.A best alternate path to the root bridge.VCE Online .VCE Exam Simulator .

access lists DTP in nonegotiate VTP pruning PBR Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: VTP pruning enhances network bandwidth use by reducing unnecessary flooded traffic. Reference: http://www.shared port by default.2SX/configuration/guide/book/vtp. This automatic link type setting can be overridden by explicit configuration.com . The MAC address-table will hold addresses 180 seconds longer than the default of 10 minutes. The MAC address-table will be flushed every 3 minutes. C. In switched networks today. Reference: http://www.VCE Exam Simulator . unknown. B. This is how long a dynamic MAC address will remain in the CAM table. ARP requests will be processed less frequently by the switch. B. By default. multicast. and flooded unicast packets to only the switches that require it. D.table? A.cisco. VTP pruning is disabled. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: You can configure the amount of time that an entry (the packet source MAC address and port that packet ingresses) remain in the MAC table. D.com/c/en/us/support/docs/lan-switching/spanning-tree.vceplus. E.Download A+ VCE (latest) free Open VCE Exams . www. This makes them candidates for rapid transition to the forwarding state. C.IT Certifications .VCE to PDF Converter .cisco. The default timeout period will be 360 seconds. VTP pruning increases available bandwidth by restricting flooded traffic to those trunk links that the traffic must use to access the appropriate network devices. such as broadcast. most links operate in fullduplex mode and are treated as point-to-point links by RSTP.protocol/24062-146.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12.VCE Online .html#wp1020444 QUESTION 19 What effect does the mac address-table aging-time 180 command have on the MAC address.html QUESTION 18 Which technique automatically limits VLAN traffic to only the switches that require it? A.

The idea behind requiring administrative action is so that a human engineer can intercede. the link was placed into a non-forwarding state due to a fault with UDLD. After the damaged cable was replaced.VCE to PDF Converter . B. macros errdisable autorecovery IP Event Dampening command aliases Bidirectional Forwarding Detection Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: There are a number of events which can disable a link on a Catalyst switch. assess. C. perform this task: This example shows how to set the aging time for entries in the MAC address table to 600 seconds (10 minutes): switch# configure terminal switch(config)# mac-address-table aging-time 600 Reference: http://www.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli/ CLIConfigurationGuide/MACAddress. this can be done by issuing shutdown followed by no shutdown on the interface. E. a technician accidently bumps the fiber connection between two core switches and damages one of the pairs of fiber.vceplus.To configure the aging time for all MAC addresses.html#wp1126206 QUESTION 20 While working in the core network building.VCE Online .IT Certifications . What solution allows the network switch to automatically recover from such an issue? A.Download A+ VCE (latest) free Open VCE Exams . D. the link did not recover. or a broadcast storm. such as the detection of a loopback. As designed. UDLD failure. and (ideally) correct www.VCE Exam Simulator . By default. manual intervention by an administrator is necessary to restore the interface to working order.com .cisco.

B. What is a cause for this issue? A. The ACL merge algorithm. Reference: http://www. generate the number of TCAM entries listed for security and QoS ACEs.com/c/en/us/support/docs/switches/catalyst-3750-series. Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: SDM Template Notes: All templates are predefined.net/blog/2009/sep/14/errdisable-autorecovery/ QUESTION 21 A network engineer deployed a switch that operates the LAN base feature set and decides to use the SDM VLAN template.switches/44921-swdatabase-3750ss-44921.IT Certifications . but not a destination. The SDM VLAN template causes the MAC address-table to overflow.cisco. Choosing the VLAN template will actually disable routing (number of entry for unicast or multicast route is zero) in hardware. SPAN encapsulation replication must be enabled to capture EtherChannel destination traffic. This gives the offending issue a chance to be cleared by the user (for example. D. all processing overflow is sent to the CPU which can have a major impact on the performance of the switch. VLAN filters are required to ensure traffic mirrors effectively. C. by removing an unapproved device) without the need for administrative intervention. The switch needs to be rebooted before the SDM template takes effect. RSPAN must be used to capture EtherChannel bidirectional traffic. www. The VLAN receives additional frames from neighboring switches.html QUESTION 22 An access switch has been configured with an EtherChannel port. This is where errdisable autorecovery can be of great assistance. However.Download A+ VCE (latest) free Open VCE Exams . C. as opposed to the original access control entries (ACEs) configured by the user. The VLAN template disables routing in hardware.VCE Exam Simulator . We can configure the switch to automatically re-enable any error-disabled interfaces after a specified timeout period.VCE Online . There is no way to edit template category individual values. If the boundary is exceeded.VCE to PDF Converter .com . The switch reload is required to use a new SDM template.vceplus. the network administrator notices that not all traffic is being replicated to the management server. Reference: http://packetlife. The SDM template is causing the CPU of the switch to spike during peak working hours. and a steady recurrence of these can amount to a huge time sink for the administrative staff. The port channel can be used as a SPAN source. some configurations may be prone to accidental violations. D. After configuring SPAN to monitor this port. The first eight lines (up to Security ACEs) represent approximate hardware boundaries set when a template is used.the issue. What is the root cause of this issue? A. B.

VCE to PDF Converter .IT Certifications . Reference: http://www.com . You can configure ports or EtherChannels in any VLAN as SPAN sources.cisco.vceplus. What is the result of the configuration? A. You can configure both Layer 2 and Layer 3 ports and EtherChannels as SPAN sources. www.Download A+ VCE (latest) free Open VCE Exams .VCE Online . The EtherChannels would form and function properly even though the load-balancing and EtherChannel modes do not match.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12. but not a destination.2SX/configuration/guide/book/span. The EtherChannels would not form because the load-balancing method must match on the devices. B.VCE Exam Simulator .html#wp1040905 QUESTION 23 Refer to the exhibit. A portchannel interface (an EtherChannel) can be a SPAN source. SPAN can monitor one or more source ports or EtherChannels in a single SPAN session.Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: A source port or EtherChannel is a port or EtherChannel monitored for traffic analysis. Trunk ports or EtherChannels can be configured as sources and mixed with nontrunk sources.

D.VCE Online .VCE to PDF Converter .com . but will only be present on the physical interfaces. The storm control settings will appear on the EtherChannel. B. The storm control configuration will be accepted. Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: An etherchannel will form if one end is active and the other is passive. PagP. This is true for the switch globally.cisco. What is the result of the configuration? A.IT Certifications . C. or LACP) use the same load-balancing. Reference: http://www.2/54sg/configuration/guide/config/channel. all channels (manually configured. The EtherChannels would form and both devices would use the dst-ip load-balancing method because Switch1 is configured with EtherChannel mode active. The configuration will be rejected because storm control is not supported for EtherChannel. The table below summarizes the results for LACP channel establishment based on the configuration of each side of a link: Load balancing can only be configured globally.vceplus. Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: www.C.VCE Exam Simulator .com/c/en/us/td/docs/switches/lan/catalyst4500/12. but network loops would occur because the load-balancing methods do not match. The EtherChannels would form. although each switch involved in the etherchannel can have non matching parameters for load balancing.Download A+ VCE (latest) free Open VCE Exams . As a result. but not on the associated physical ports.html#wp1020804 QUESTION 24 A network engineer tries to configure storm control on an EtherChannel bundle. The settings will be applied to the EtherChannel bundle and all associated physical interfaces. D.

Explanation: After you configure an EtherChannel. increasing operational efficiency. D. C. Reference: http://www.VCE Online . This port continues to reestablish until after eight failed retries. Storm Control must be configured on all or none of the ports. combining for an active 1400-Gbps switching capacity per VSS. boosting nonstop communications.VCE to PDF Converter .Download A+ VCE (latest) free Open VCE Exams .VCE Exam Simulator . Storm Control is an exception to this rule.2/31sg/configuration/guide/conf/channel. B.html QUESTION 26 After UDLD is implemented. B. and scaling system bandwidth capacity to 1. D. any configuration that you apply to the physical interfaces affects only the interface where you apply the configuration.124536783. Only one of the virtual switch members has the active control plane.com . Reference: http://ciscorouterswitch.cisco. Normal UDLD operations that prevent traffic loops. UDLD timers are inconsistent. UDLD port is configured in aggressive mode.IT Certifications . Which option describes what causes the port to go into the errdisable state? A. www. UDLD is enabled globally. VSS formed by two Cisco Catalyst 6500 Series Switches with the Virtual Switching Supervisor 720-10GE. those ports will be dropped from the EtherChannel interface (put in suspended state). Switches would operate as a single logical virtual switch called a virtual switching system 1440 (VSS1440). you cannot configure Storm Control on some of the members of an EtherChannel. and not at the physical interface level. forward traffic simultaneously using both supervisors forward traffic based on Cisco Express Forwarding provide automatic failover to back up supervisor in VSS mode provide nonstop forwarding in the event of failure of one of the member supervisors Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: VSS is network system virtualization technology that pools multiple Cisco Catalyst 6500 Series Switches into one virtual switch. The port then transitions into the errdisable state. If you configure Storm Control on only some of the ports.4 Tbps. you should configure Storm Control at the EtherChannel Interface level.com/c/en/us/td/docs/switches/lan/catalyst4500/12.com/article-cisco-catalyst-6500-series-vss-1440. For example.vceplus. any configuration that you apply to the port-channel interface affects the EtherChannel. In a VSS. Therefore. the data plane and switch fabric with capacity of 720 Gbps of supervisor engine in each chassis are active at the same time on both chassis. C. a Network Administrator noticed that one port stops receiving UDLD packets. Both chassis are kept in sync with the inter-chassis Stateful Switchover (SSO) mechanism along with Nonstop Forwarding (NSF) to provide nonstop communication even in the event of failure of one of the member supervisor engines or chassis.over-blog.html QUESTION 25 What is the function of NSF? A.

vceplus.IT Certifications . BackboneFast www. STP immediately replaces the root port with an alternative root port.cisco. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: By default. so when UDLD is first enabled and does not detect a neighbor the link state is considered unknown. When UDLD is finally enabled on the other end.VCE Exam Simulator . an engineer notices that the. C.VCE Online . After eight failed retries. Which spanning-tree technology is used to accomplish backup root port selection? A. UDLD is disabled on all interfaces. or individually on specific interfaces with the command udld port. Reference: http://www. the status will transition to bidirectional. UDLD tries to reestablish the connection with the neighbor. B.Download A+ VCE (latest) free Open VCE Exams . We can enable UDLD globally on the device.VCE to PDF Converter .html QUESTION 27 After reviewing UDLD status on switch ports. Reference: http://packetlife. This enables UDLD in normal mode." Which statement describes what this indicates about the status of the port? A. The UDLD port is placed in the "unknown" state for 5 seconds until the next UDLD packet is received on the interface. the port is disabled. when a port on a bidirectional link that has a UDLD neighbor relationship established stops receiving UDLD packets. UDLD moved into aggressive mode after inconsistent acknowledgements were detected. The port will remain operational during this time. D. The port is fully operational and no known issues are detected.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12.net/blog/2011/mar/7/udld/ QUESTION 28 Pilot testing of the new switching infrastructure finds that when the root port is lost. which is not necessarily an error condition. It would be prohibitively difficult to coordinate the configuration of UDLD on both ends of a link at the same time.2SX/configuration/guide/book/udld.com . PortFast C. PVST+ B.Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: With UDLD aggressive mode enabled. The bidirectional status of "unknown" indicates that the port will go into the disabled state because it stopped receiving UDLD packets from its neighbor.

The switches do not forward these frames but use them to construct a loop-free path.VCE Exam Simulator . at regular intervals. an uplink group consists of the root port (which is forwarding) and a set of blocked ports. only one of which is forwarding at any given time. and path cost.IT Certifications . Specifically. Which two elements are used to accomplish this? (Choose two. port priority. UplinkFast E.vceplus.2_55_se/configuration/guide/scg_2960/swstpopt. BPDUs contain information about the sending switch and its ports.D. E. UplinkFast provides fast convergence after a direct link failure and achieves load balancing between redundant Layer 2 links using uplink groups. C. including switch and MAC addresses.VCE to PDF Converter . The uplink group provides an alternate path in case the currently forwarding link fails. Reference: http://www. except for self-looping ports. Loop Guard F. B. If a network segment in the spanning tree fails and a redundant path exists.VCE Online . UDLD Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: I f a switch loses connectivity. By enabling UplinkFast with the spanning-tree uplinkfast global configuration command. called bridge protocol data units (BPDUs). An uplink group is a set of Layer 2 interfaces (per VLAN). switch priority. D. port-priority cost forward-timers link type root guard Correct Answer: AB Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Spanning tree forces redundant data paths into a standby (blocked) state. it begins using the alternate paths as soon as the spanning tree selects a new root port. The root port transitions to the forwarding state immediately without going through the listening and learning states.com .) A. you can accelerate the choice of a new root port when a link or switch fails or when the spanning tree reconfigures itself.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12. as it would with the normal spanning-tree procedures. Spanning tree uses this information to elect the root switch and root port for the switched network and the root port and designated port for each www. Switches send and receive spanning-tree frames.cisco. the spanning-tree algorithm recalculates the spanning-tree topology and activates the standby path.html QUESTION 29 A network engineer must adjust the STP interface attributes to influence root port selection.Download A+ VCE (latest) free Open VCE Exams .

switched segment.
When two ports on a switch are part of a loop, the spanning-tree port priority and path cost settings control which port is put in the forwarding state and
which is put in the blocking state. The spanning-tree port priority value represents the location of a port in the network topology and how well it is located
to pass traffic. The path cost value represents the media speed.
Reference:
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3750x_3560x/software/release/12- 2_55_se/configuration/guide/3750xscg/swstp.html
QUESTION 30
A network engineer must set the load balance method on an existing port channel. Which action must be done to apply a new load balancing method?
A.
B.
C.
D.

Configure the new load balancing method using port-channel load-balance.
Adjust the switch SDM back to "default".
Ensure that IP CEF is enabled globally to support all load balancing methods.
Upgrade the PFC to support the latest load balancing methods.

Correct Answer: A
Section: Layer 2 Technologies
Explanation
Explanation/Reference:
Example:
EtherChannel balances the traffic load across the links in a channel through the reduction of part of the binary pattern that the addresses in the frame
form to a numerical value that selects one of the links in the channel. EtherChannel load balancing can use MAC addresses or IP addresses, source or
destination addresses, or both source and destination addresses. The mode applies to all EtherChannels that are configured on the switch. You
configure the load balancing and forwarding method with use of the port-channel load-balance {dst-ip | dst-mac | src-dst-ip | src-dst-mac | src-ip |
src-mac} global configuration command.
Reference: http://www.cisco.com/c/en/us/support/docs/lan-switching/etherchannel/12023-4.html
QUESTION 31
Refer to the exhibit.

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A network engineer investigates a recent network failure and notices that one of the interfaces on the switch is still down. What is causing the line
protocol on this interface to be shown as down?
A.
B.
C.
D.
E.

There is a layer 1 physical issue.
There is a speed mismatch on the interface.
The interface is configured as the target of the SPAN session.
The interface is configured as the source of the SPAN session.
There is a duplex mismatch on the interface.

Correct Answer: C
Section: Layer 2 Technologies
Explanation
Explanation/Reference:
Explanation:
With the SAPN destination port, the state of the destination port is up/down by design. The interface shows the port in this state in order to make it
evident that the port is currently not usable as a production port. This is the normal operational state for SPAN destinations.
Reference:
http://www.cisco.com/en/US/products/hw/switches/ps708/products_tech_note09186a008015c61 2.shtml
QUESTION 32
While doing network discovery using Cisco Discovery Protocol, it is found that rapid error tracking is not currently enabled. Which option must be
enabled to allow for enhanced reporting mechanisms using Cisco Discovery Protocol?
A. Cisco Discovery Protocol version 2
B. Cisco IOS Embedded Event Manager
C. logging buffered

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D. Cisco Discovery Protocol source interface
E. Cisco Discovery Protocol logging options
Correct Answer: A
Section: Layer 2 Technologies
Explanation
Explanation/Reference:
CDP Version 1 -- This is the first version of CDP which was used for the discovery of Cisco devices in the network. This version is mainly used for
backward compatibility.
CDP Version 2 -- This is the most recent version of CDP which has enhanced features such as rapid reporting mechanism, which is used to track
down errors and minimize costly downtime. It allows you to track instances even if the native VLAN ID or port duplex states do not match between
connecting devices. This is the default version on all switches.
Reference: http://sbkb.cisco.com/CiscoSB/GetArticle.aspx?
docid=0ed03cbac49b446ab390a657917d817c_Cisco_Discovery_Protocol_CDP__Properties_Set tings_on_Sx500_S.xml&pid=2&converted=0
QUESTION 33
Which technique allows specific VLANs to be strictly permitted by the administrator?
A.
B.
C.
D.
E.

VTP pruning
transparent bridging
trunk allowed VLANs
VLAN access-list
L2P tunneling

Correct Answer: C
Section: Layer 2 Technologies
Explanation
Explanation/Reference:
Explanation:
By default, a trunk port sends traffic to and receives traffic from all VLANs. All VLAN IDs, 1 to 4094, are allowed on each trunk. However, you can
remove VLANs from the allowed list, preventing traffic from those VLANs from passing over the trunk. To restrict the traffic a trunk carries, use the
"switchport trunk allowed vlan remove vlan-list" interface configuration command to remove specific VLANs from the allowed list.
Reference:
http://www.cisco.com/en/US/docs/switches/lan/catalyst3550/software/release/12.1_13_ea1/confi guration/guide/swvlan.html
QUESTION 34
For security reasons, the IT manager has prohibited users from dynamically establishing trunks with their associated upstream switch. Which two
actions can prevent interface trunking? (Choose two.)

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Enable switchport block on access ports.com/servlet/JiveServlet/previewBody/14792-102-1. Reference: http://www." This prevents the interface from generating DTP frames. D. Apply BPDU guard and BPDU filter. the switchport trunk encapsulation [dot1q | isl | negotiate] interface command must be used prior to the switchport mode trunk command.VCE to PDF Converter .IT Certifications .VCE Exam Simulator . and is enabled by default. C. DTP causes increased traffic. but may be disabled. Configure trunk and access interfaces manually. E.cisco. Reference: https://learningnetwork.com/articles/article. Which action resolves this problem? www. C. Disable DTP on a per interface basis. After verifying all VTP settings. To disable DTP.ciscopress.Download A+ VCE (latest) free Open VCE Exams .vceplus. PPP DTP ISL HDLC DLCI DOT1Q Correct Answer: CF Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Switches such as the Catalyst 3550 that are capable of either 802.PDF QUESTION 36 A network is running VTPv2. D.VCE Online . B. configure "switchport nonegotiate. F. the network engineer notices that the new switch is not receiving the list of VLANs from the server.1Q or ISL trunking encapsulation. You must manually configure the neighboring interface as a trunk interface to establish a trunk link. otherwise the link will be a non-trunking link. Correct Answer: AB Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: The Dynamic Trunking Protocol (DTP) is used to negotiate forming a trunk between two Cisco devices.A. You can use this command only when the interface switchport mode is access or trunk.com . B.asp?p=2181837&seqNum=8 QUESTION 35 Which two protocols can be automatically negotiated between switches for trunking? (Choose two.57313/Dynamic%20Trunking%20Protocol.) A.

Another switch in the domain has a higher revision number than the server. Reload the VTP server. Restart the VTP process on the new switch. VTP must be stopped and restarted on the server. The VTP server must be reloaded. the key associated with the password is saved in hexadecimal format in the running configuration.VCE Exam Simulator .A. After each update to the VTP server. If extended VLANs are configured.com .Download A+ VCE (latest) free Open VCE Exams . You must reenter the password if you enter a takeover command in the domain. Reference: http://www. Reload the new switch.VCE Online .com/en/US/docs/switches/lan/catalyst3560/software/release/12. you can directly configure the password secret key.cisco. The VTP version number must be set to version 3. D. What is the problem? A.2_52_se/config uration/guide/swvtp. B. Instead. C. Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: VTP version 3 supports these features that are not supported in version 1 or version 2: Enhanced authentication--You can configure the authentication as hidden or secret.IT Certifications . Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: VTP should never need to have the switch reloaded or the VTP process to restart in order for it to work. Support for extended range VLAN (VLANs 1006 to 4094) database propagation. QUESTION 37 After configuring new data VLANs 1020 through 1030 on the VTP server. VTP versions 1 and 2 propagate only VLANs 1 to 1005. the secret key from the password string is saved in the VLAN database file.vceplus. E. The first thing that should be done is to verify that the trunk ports are connected and up.VCE to PDF Converter .html#wp1316856 QUESTION 38 www. When you enter the secret keyword. it takes up to 4 hours propagate. Verify connected trunk ports. When hidden. but it does not appear in plain text in the configuration. you cannot convert from VTP version 3 to version 1 or 2. B. C. a network engineer notices that none of the VTP clients are receiving the updates. D.

Therefore.VCE Exam Simulator . Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Pruning unnecessary VLANs from the trunk can be performed with one of two methods: Manual pruning of the unnecessary VLAN on the trunk--This is the best method. VTP pruning removed all unused VLANs.com/en/US/tech/tk389/tk689/technologies_tech_note09186a0080890613. 20. The command effectively removed all other working VLANs and replaced them with the new VLANs.com . the method runs the pruned VLAN on trunks.VCE to PDF Converter . Modify the spanning-tree priorities to dictate the traffic flow. Reference: http://www. C.IT Certifications . and overwrite any others that were previously defined. Since the question asked for the choice that is an enhancement to the STP design. You would also need to explicitly allow the other working VLANs to this configuration command. all other existing VLANs no longer pass traffic over the trunk.A network engineer is extending a LAN segment between two geographically separated data centers. D. B.VCE Online . VTP pruning--Avoid this method if the goal is to reduce the number of STP instances. ISL was unable to encapsulate more than the already permitted VLANs across the trunk.Download A+ VCE (latest) free Open VCE Exams .pruned VLANs on a trunk are still part of the spanning tree.20.shtml QUESTION 39 The network manager has requested that several new VLANs (VLAN 10. VTP pruning is the best choice. What is the root cause of the problem? A.30 is issued. Use VTP pruning on the trunk interfaces. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: The "switchport trunk allowed vlan" command will only allow the specified VLANs. Instead.vceplus. Allowing additional VLANs across the trunk introduced a loop in the network. VTP-pruned VLANs do not reduce the number of spanning tree port instances. D. and 30) are allowed to traverse the switch trunk interface.cisco. and it avoids the use of the spanning tree. C. Which enhancement to a spanning-tree design prevents unnecessary traffic from crossing the extended LAN segment? A. or use the "issue the switchport trunk allowed vlan add vlan-list" www. Configure manual trunk pruning between the two locations. VTP. Create a Layer 3 transit VLAN to segment the traffic between the sites. After the command switchport trunk allowed vlan 10. B.

D. B.cisco. 1000 1001 1024 2048 4095 4096 Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: VTP versions 1 and 2 Supports normal VLAN numbers (1-1001). Reference: https://supportforums. D. including control traffic. B. QUESTION 42 A network engineer has just deployed a non-Cisco device in the network and wants to get information about it from a connected device. how many VLANs can be used to carry user traffic? A.vceplus.com/2012/11/difference-between-vtp-versions.com/document/11836/how-define-vlans-allowed-trunk.VCE to PDF Converter .com . It allows control traffic to pass using the non-default VLAN.command instead to add these 3 VLANS to the other defined allowed VLANs.VCE Exam Simulator .link QUESTION 40 When you design a switched network using VTPv2.blogspot. It removes the 4-byte dot1q tag from every frame that traverses the trunk interface(s). Control traffic is tagged.Download A+ VCE (latest) free Open VCE Exams .html QUESTION 41 What does the command vlan dot1q tag native accomplish when configured under global configuration? A. Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: The "vlan dot1q tag native" will tag all untagged frames. Cisco Discovery Protocol is not supported. Which protocol does the network engineer configure on both devices to www. except when the native VLAN is set to 1. All frames within the native VLAN are tagged.IT Certifications . C. E. so the open standard protocol must be configured. F. with the defined native VLAN.VCE Online . C. Reference: http://cciememo. Only VTP version 3 supports extended VLANs (1-4095).

Reference: http://en. IRDP LLDP NDP LLTD Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: The Link Layer Discovery Protocol (LLDP) is a vendor-neutral link layer protocol in the Internet Protocol Suite used by network devices for advertising their identity. C.VCE Online .Download A+ VCE (latest) free Open VCE Exams .VCE Exam Simulator . However.vceplus. For Integrated Cisco IOS Software based switches. Reference: https://supportforums. B. allowed VLAN list VTP pruning VACL L2P tunneling Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: When a trunk link is established. and neighbors on an IEEE 802 local area network.org/wiki/Link_Layer_Discovery_Protocol QUESTION 43 A manager tells the network engineer to permit only certain VLANs across a specific trunk interface. D. VLANs 1 through 1005 are allowed on each trunk by default.To restrict the traffic that a trInk carries. VLAN traffic can be removed from the allowed list.link www.accomplish this? A.IT Certifications . C. perform these steps: 1. Note: The allowed VLAN list on both the ends of the trunk link should be the same. all of the configured VLANs are allowed to send and receive traffic across the link.cisco. This removes specific VLANs from the allowed list. capabilities. Which option can be configured to accomplish this? A. issue the switchport trunk vlan-Iist interface configuration command.VCE to PDF Converter . B. principally wired Ethernet.com . D. This keeps traffic from the VLANs from passing over the trunk link.com/document/11836/how-define-vlans-allowed-trunk. such as the Cisco Discovery Protocol (CDP).wikipedia. LLDP performs functions similar to several proprietary protocols.

informit.Download A+ VCE (latest) free Open VCE Exams . For their disaster recovery feature to operate successfully. B. B. E.VCE Online . Example configuration: Switch-C# configure terminal Switch-C(config)# interface range fa0/3 . The port still participates in STP. E.IT Certifications . PortFast immediately transitions the port into STP forwarding mode upon linkup. D.QUESTION 44 For client server failover purposes. enable the STP PortFast feature.aspx? b=CCNP_Studies_Switching&seqNum=36 QUESTION 45 Which command does a network engineer use to verify the spanning-tree status for VLAN 10? A. C. the application server team has indicated that they must not have the standard 30 second delay before their switchport enters a forwarding state. Which spanning-tree feature satisfies this requirement? A. the port eventually transitions into STP blocking mode.com . switch# show spanning-tree vlan 10 switch# show spanning-tree bridge switch# show spanning-tree brief switch# show spanning-tree summary switch# show spanning-tree vlan 10 brief Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: www. So if the port is to be a part of the loop. C.vceplus.24 Switch-C(config-if-range)# spnning-tree portfast Reference: http://www.VCE Exam Simulator .com/library/content. Rapid Spanning-Tree Spanning-Tree Timers Spanning-Tree FastPort Spanning-Tree PortFast Spanning-Tree Fast Forward Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: In order to allow immediate transition of the port into forwarding state. they require the switchport to enter a forwarding state immediately. D.VCE to PDF Converter .

Switches with higher revisio" num"ers does not accept the new domain name.vceplus. C. All other switches with the default domain name become VTP clients.cisco. VTP summary advertisements are sent out of all ports with the new domain name. D.com .Reference: http://www. If all switches currently have the default VTP domain name "null".VCE Online . The switch with the non-default domain name restores back to "null" upon reboot.IT Certifications . B.com/en/US/docs/ios/lanswitch/command/reference/lsw_s2.html QUESTION 46 A new network that consists of several switches has been connected together via trunking interfaces. which statement describes what happens when"a do"ain name is configured on one of the switches? A. www.Download A+ VCE (latest) free Open VCE Exams .VCE Exam Simulator .VCE to PDF Converter .

Download A+ VCE (latest) free Open VCE Exams .com . PVRST+ runs STP instances for each VLAN and does not take into consideration the physical topology that might not require many different STP topologies. Contained in a summary advertisement: VTP version Domain name Configuration revision number Time stamp MD5 encryption hash code Reference: https://rowell. The network is expected to grow and add many new VLANs in the future. Which Spanning Tree Protocol should be used to reduce switch resources and managerial burdens that are associated with multiple spanning-tree instances? A. If the switch hears a VTP advertisement it will automatically learn the VTP domain name. C. B.sent out every 300 seconds and every time a change occurs on the VLAN database.VCE Online . The main purpose of MST is to reduce the total number of spanning-tree instances to match the physical topology of the network and thus reduce the CPU cycles of a switch. on the other hand. MST. uses a www.VCE to PDF Converter . Summary advertisements . VLANs. E.net/configuring-cisco-vtp/ QUESTION 47 A network engineer is setting up a new switched network. RSTP PVST MST PVST+ RPVST+ Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Multiple Spanning Tree (MST) extends the IEEE 802. a switch will have a domain name of NULL and no password.dionicio.vceplus.VCE Exam Simulator . D. and the configuration revision number.1w RST algorithm to multiple spanning trees.Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: By default.IT Certifications .

E.blogspot. there are 1000 VLANs. Figure 3-15 shows a common network design. reducing the need for switch resources.html QUESTION 48 Which statement about the use of SDM templates in a Cisco switch is true? A. Rather than maintaining 1000 spanning trees.com .vceplus. SDM templates are configured by accessing the switch using the web interface. The 1000 VLANs map to two MST instances.Download A+ VCE (latest) free Open VCE Exams .VCE Online . In this setup.tree_19. featuring an access Switch A.VCE Exam Simulator . SDM templates are used to configure ACLs that protect networks and specific hosts from unnecessary or unwanted traffic. Figure 3-15: VLAN Load Balancing Figure 3-15 illustrates two links and 1000 VLANs. each switch needs to maintain only two spanning trees.com/2011/05/chapter-03-implementing-spanning. C. SDM templates are used to configure a set of ACLs that allows the users to manage the flow of traffic handled by the route processor.minimum number of STP instances to match the number of physical topologies present. B. and the network administrator typically seeks to achieve load balancing on the access switch uplinks based on even or odd VLANs--or any other scheme deemed appropriate. Reference: http://ciscodocuments. SDM templates are used to create Layer 3 interfaces (switch virtual interfaces) to permit hosts in one VLAN to communicate with hosts in another VLAN. www. connected to two Building Distribution submodule Switches D1 and D2.IT Certifications . depending on how the switch is used in the network.VCE to PDF Converter . SDM templates are used to configure system resources in the switch to optimize support for specific features. D.

D. C.pdf QUESTION 50 Which SDM template is the most appropriate for a Layer 2 switch that provides connectivity to a large number of clients? www.VCE to PDF Converter . typically required for a router or aggregator in the center of a network.Download A+ VCE (latest) free Open VCE Exams . VLANs--The VLAN template disables routing and supports the maximum number of unicast MAC addresses. Default--The default template gives balance to all functions. for example. the switch SDM templates prioritize system resources to optimize support for certain features.cisco. Routing--The routing template maximizes system resources for Ipv4 unicast routing.IT Certifications . You can select SDM templates to optimize these features: Access--The access template maximizes system resources for access control lists (ACLs) to accommodate a large number of ACLs. depending on how the switch is used in the network. and use access template to obtain maximum ACL usage. VLAN access default routing Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: To allocate ternary content addressable memory (TCAM) resources for different usages.pdf QUESTION 49 Which SDM template disables routing and supports the maximum number of unicast MAC addresses? A.VCE Online .2_55_se/config uration/guide/swsdm.cisco. B.com/en/US/docs/switches/lan/catalyst3560/software/release/12. To allocate hardware resources for different usages.Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: You can use SDM templates to configure system resources in the switch to optimize support for specific features.VCE Exam Simulator .2_55_s e/configuration/guide/swsdm.com/en/US/docs/switches/lan/catalyst3750x_3560x/software/release/12. You can select a template to provide maximum system usage for some functions. Reference: http://www.com . It would typically be selected for a Layer 2 switch. Reference: http://www.vceplus. use the default template to balance resources. the switch SDM templates prioritize system resources to optimize support for certain features.

Default--The default template gives balance to all functions.com . Reference: http://www. 100 seconds 180 seconds 300 seconds 600 seconds Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: To configure the aging time for all MAC addresses. C. perform this task: www.Download A+ VCE (latest) free Open VCE Exams .cisco.A. B. D. typically required for a router or aggregator in the center of a network.VCE to PDF Converter . B. what is the default period of time after which a MAC address ages out and is discarded? A. D. It would typically be selected for a Layer 2 switch.2_55_se/config uration/guide/swsdm. C.pdf QUESTION 51 In a Cisco switch.com/en/US/docs/switches/lan/catalyst3560/software/release/12. You can select SDM templates to optimize these features: Access--The access template maximizes system resources for access control lists (ACLs) to accommodate a large number of ACLs. Routing--The routing template maximizes system resources for Ipv4 unicast routing. VLANs--The VLAN template disables routing and supports the maximum number of unicast MAC addresses (clients).vceplus.VCE Exam Simulator .IT Certifications .VCE Online . VLAN default access routing Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: To allocate ternary content addressable memory (TCAM) resources for different usages. the switch SDM templates prioritize system resources to optimize support for certain features.

Mac-address-table notification mac-move [counter [syslog]] no mac-address-table notification mac-move [counter [syslog]] Syntax Description www.com . A new MAC address is added to the content-addressable memory. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: mac-address-table notification mac-move To enable MAC-move notification.com/en/US/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli/M ACAddress.html QUESTION 52 If a network engineer applies the command mac-address-table notification mac-move on a Cisco switch port.IT Certifications .VCE Online .vceplus. More than 64 MAC addresses are added to the content-addressable memory.VCE Exam Simulator .Reference: http://www. B.cisco. use the no form of this command. use the mac-address-table notification mac-move command in global configuration mode. A new MAC address is removed from the content-addressable memory. D. A MAC address or host moves between different switch ports. when is a syslog message generated? A. C.VCE to PDF Converter . To disable MAC-move notification.Download A+ VCE (latest) free Open VCE Exams .

Reference: http://www.cisco.vceplus.shtml www. The reason can be: Duplex mismatch Port channel misconfiguration BPDU guard violation UniDirectional Link Detection (UDLD) condition Late-collision detection Link-flap detection Security violation Port Aggregation Protocol (PAgP) flap Layer 2 Tunneling Protocol (L2TP) guard DHCP snooping rate-limit Incorrect GBIC / Small Form-Factor Pluggable (SFP) module or cable Address Resolution Protocol (ARP) inspection Inline power Reference: http://www.com .VCE Online . B.IT Certifications .cisco.VCE Exam Simulator .VCE to PDF Converter .Usage Guidelines MAC-move notification generates a syslog message whenever a MAC address or host moves between different switch ports. C.com/en/US/docs/ios/lanswitch/command/reference/lsw_m1.html QUESTION 53 Which option is a possible cause for an errdisabled interface? A.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00806cd87b. routing loop cable unplugged STP loop guard security violation Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: There are various reasons for the interface to go into errdisable.Download A+ VCE (latest) free Open VCE Exams . D.

Download A+ VCE (latest) free Open VCE Exams . The errdisable recovery command allows you to choose the type of errors that automatically reenable the ports after a specified amount of time. D. The show errdisable recovery command shows the default error-disable recovery state for all the possible conditions. C.com .QUESTION 54 What is the default value for the errdisable recovery interval in a Cisco switch? A. B. cat6knative#show errdisable recovery ErrDisable Reason Timer Status ----------------.VCE Exam Simulator .IT Certifications .VCE Online . you must reenable the ports manually. In this case.VCE to PDF Converter .-------------udld Disabled bpduguard Disabled security-violatio Disabled channel-misconfig Disabled pagp-flap Disabled dtp-flap Disabled link-flap Disabled l2ptguard Disabled psecure-violation Disabled gbic-invalid Disabled dhcp-rate-limit Disabled mac-limit Disabled unicast-flood Disabled arp-inspection Disabled Timer interval: 300 seconds www.vceplus. 30 seconds 100 seconds 300 seconds 600 seconds Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: After you fix the root problem. the ports are still disabled if you have not configured errdisable recovery on the switch. Issue the shutdown command and then the no shutdown interface mode command on the associated interface in order to manually reenable the ports.

Power over Ethernet. Each device broadcasts periodic advertisements to all of its neighbors. Each device sends periodic advertisements to multicast address 01:00:0C:CC:CC:CC. network policy. out each connected network interface. C. the timeout feature is disabled.VCE to PDF Converter .pdf QUESTION 56 Which statement about Cisco devices learning about each other through Cisco Discovery Protocol is true? A. LLDP-MED is an extension to LLDP that operates between routers that run BGP. LLDP-MED is an extension to LLDP that operates only between endpoint devices.VCE Online . LLDP-MED is an extension to LLDP that operates between endpoint devices and network devices.shtml QUESTION 55 Which statement about LLDP-MED is true? A.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00806cd87b.com .com/en/US/docs/switches/metro/me3400/software/release/12. B.VCE Exam Simulator .vceplus. and inventory management. D. Reference: http://www. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Cisco devices send periodic CDP announcements to the multicast destination address 01-00-0c. B.Interfaces that will be enabled at the next timeout: Note: The default timeout interval is 300 seconds and. It specifically provides support for voice over IP (VoIP) applications and provides additional TLVs for capabilities discovery. C. Each device sends periodic advertisements to a central device that builds the network topology. LLDP-MED is an extension to LLDP that operates only between network devices.Download A+ VCE (latest) free Open VCE Exams .cisco. D.IT Certifications . www. Each device sends periodic advertisements to all IP addresses in its ARP table. by default. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: LLDP for Media Endpoint Devices (LLDP-MED) is an extension to LLDP that operates between endpoint devices such as IP phones and network devices such as switches.cisco. These multicast packets may be received by Cisco switches and other networking devices that support CDP into their connected network interface. Reference: http://www.2_58_se/configur ation/guide/swlldp.cc-cc-cc.

spravcesite. Table 21 summarizes the TLV definitions for CDP advertisements.com .VCE to PDF Converter .net/subdom/network/index.vceplus. port-duplex.VCE Online . memory errors Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Type-Length-Value fields (TLVs) are blocks of information embedded in CDP advertisements. port-duplex.Download A+ VCE (latest) free Open VCE Exams . hardware platform port-duplex.php?id=cdp QUESTION 57 Which option lists the information that is contained in a Cisco Discovery Protocol advertisement? A. memory errors. D.VCE Exam Simulator .Reference: http://network.IT Certifications . C. Table 21 Type-Length-Value Definitions for CDPv2 www. memory errors native VLAN IDs. B. native VLAN IDs. hardware platform. hardware platform native VLAN IDs.

com/en/US/docs/ios/12_2/configfun/configuration/guide/fcf015.cisco.vceplus.Reference: http://www.VCE Online .VCE Exam Simulator .Download A+ VCE (latest) free Open VCE Exams .com .html QUESTION 58 Which option describes a limitation of LLDP? www.IT Certifications .VCE to PDF Converter .

Download A+ VCE (latest) free Open VCE Exams . LLDP can discover only Windows servers.VCE Exam Simulator .vceplus.A. LLDP cannot provide information about VTP. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Reference: http://www.com .html www.com/en/US/technologies/tk652/tk701/technologies_white_paper0900aecd804c d46d. LLDP can discover up to two devices per port. B.VCE to PDF Converter .IT Certifications . LLDP does not support TLVs. C. D.cisco.VCE Online .

Reference: http://www. D. normal and aggressive active and aggressive normal and active normal and passive normal and standby Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: The Cisco-proprietary UDLD protocol monitors the physical configuration of the links between devices and ports that support UDLD.IT Certifications .2SX/configuration/guide/udl d.vceplus.cisco. and neighbors on a local area network.html www. UDLD puts the affected port into the errdisabled state and alerts the user.Download A+ VCE (latest) free Open VCE Exams . B. C. E. When a unidirectional link is detected. UDLD is a Cisco-proprietary Layer 2 protocol that enables devices to advertise their identity.com/en/US/docs/switches/lan/catalyst6500/ios/12. capabilities. UDLD puts the affected port into the errdisabled state and alerts the user. UDLD is a Cisco-proprietary Layer 2 protocol that enables devices to monitor the physical status of links and detect unidirectional failures.QUESTION 59 Which statement about the UDLD protocol is true? A. UDLD detects the existence of unidirectional links. UDLD is a standardized Layer 2 protocol that enables devices to monitor the physical status of links and detect unidirectional failures.2SX/configuration/guide/udl d.VCE Online .VCE to PDF Converter .VCE Exam Simulator .com . capabilities.com/en/US/docs/switches/lan/catalyst6500/ios/12. D. UDLD can operate in either normal or aggressive mode. and neighbors on a local area network. C. UDLD is a standardized Layer 2 protocol that enables devices to advertise their identity.html QUESTION 60 Which option lists the modes that are available for configuring UDLD on a Cisco switch? A. When a unidirectional link is detected. Reference: http://www. B.cisco. UDLD detects the existence of unidirectional links. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: The Cisco-proprietary UDLD protocol monitors the physical configuration of the links between devices and ports that support UDLD.

B. To disable CDP on an interface. B.vceplus.VCE Exam Simulator . D.com/en/US/docs/ios-xml/ios/cdp/configuration/15-mt/nm-cdp.com . C. and network-independent protocol that networking applications use to learn about nearby. media-independent. CDP also is enabled on supported interfaces by default. 30 seconds 60 seconds 120 seconds 300 seconds Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Cisco Discovery Protocol is a Layer 2. C. Each device configured for Cisco Discovery Protocol advertises at least one address at which the device can receive messages and sends periodic advertisements (messages) to the well-known multicast address 01:00:0C:CC:CC:CC. D.VCE to PDF Converter . every 60 seconds.VCE Online . by default.discover.cisco.Download A+ VCE (latest) free Open VCE Exams .QUESTION 61 What is the default interval at which Cisco devices send Cisco Discovery Protocol advertisements? A.IT Certifications . CDP is enabled by default and can be disabled globally with the command no cdp run. To disable it globally. Cisco Discovery Protocol is enabled by default. Reference: www. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: CDP is enabled on your router by default. CDP is enabled by default and can be disabled globally with the command no cdp enable. Advertisements supported and configured in Cisco software are sent. directly connected devices. use the "no cdp run" command. which indicates the length of time a receiving device should hold Cisco Discovery Protocol information before discarding it. CDP is disabled by default and can be enabled globally with the command cdp enable. They also listen to messages to learn when interfaces on other devices are up or go down. use the "no cdp enable interface" configuration command. CDP is disabled by default and can be enabled globally with the command cdp run. Devices discover each other by listening at that address. which means the Cisco IOS software will receive CDP information. Reference: http://www. Advertisements contain time-to-live information.html QUESTION 62 Which statement about Cisco Discovery Protocol configuration on a Cisco switch is true? A.

VCE Exam Simulator . html QUESTION 64 What is the size of the VLAN field inside an 802.Download A+ VCE (latest) free Open VCE Exams .IT Certifications .vceplus. B. C.VCE Online .com/en/US/docs/switches/lan/catalyst6500/ios/12.cisco. If converting from VTP version 3 to VTP version 2. 8-bit 12-bit 16-bit 32-bit Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: The VLAN field is a 12-bit field specifying the VLAN to which the frame belongs.http://www. Extended-range VLANs are supported only in VTP version 3.094 VLANs Reference: http://en. VLANs in the range 1006 to 4094 are removed from VTP control.com .html#wp10175 QUESTION 63 Which VTP mode is needed to configure an extended VLAN. All other values may be used as VLAN identifiers. when a switch is configured to use VTP versions 1 or 2? A.wikipedia. Reference: http://www. allowing up to 4.1q frame? A.cisco. C. D.org/wiki/IEEE_802. transparent client server Extended VLANs are only supported in version 3 and not in versions 1 or 2. The hexadecimal values of 0x000 and 0xFFF are reserved.VCE to PDF Converter .1Q QUESTION 65 www.2SX/configuration/guide/vtp. D.com/en/US/docs/ios/12_2/configfun/command/reference/frf015. B. Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: VTP version 1 and version 2 support VLANs 1 to 1000 only.

the port should be configured as a trunk port.VCE to PDF Converter .vceplus.IT Certifications .com .What is the maximum number of VLANs that can be assigned to an access switchport without a voice VLAN? A.VCE Exam Simulator . 0 1 2 1024 Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: A standard (non-voice VLAN port) access switch port can belong to only a single VLAN. QUESTION 66 Refer to the exhibit. If more than one VLAN is needed. Which option shows the expected result if a show vlan command is issued? www. B.VCE Online . D. C.Download A+ VCE (latest) free Open VCE Exams .

VCE to PDF Converter .VCE Exam Simulator . C.vceplus. www.com .IT Certifications . B.VCE Online .A.Download A+ VCE (latest) free Open VCE Exams .

D.

Correct Answer: A
Section: Layer 2 Technologies
Explanation
Explanation/Reference:
Explanation:
In this case, the port has been configured both as a trunk and as a switchport in data vlan 10. Obviously, a port can not be both, so even though Cisco
IOS will accept both, the port will actually be used as a trunk, ignoring the switchport access VLAN 10 command.
QUESTION 67
Which feature is automatically enabled when a voice VLAN is configured, but not automatically disabled when a voice VLAN is removed?
A.
B.
C.
D.

portfast
port-security
spanning tree
storm control

Correct Answer: A
Section: Layer 2 Technologies
Explanation
Explanation/Reference:
Explanation:
Voice VLAN Configuration Guidelines
·You should configure voice VLAN on switch access ports. The voice VLAN should be present and active on the switch for the IP phone to correctly
communicate on the voice VLAN. Use the show vlan privileged EXEC command to see if the VLAN is present (listed in the display).
·The Port Fast feature is automatically enabled when voice VLAN is configured. When you disable voice VLAN, the Port Fast feature is not
automatically disabled.

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Reference:
http://www.cisco.com/en/US/docs/switches/lan/catalyst2950/software/release/12.1_22_ea11x/co nfiguration/guide/swvoip.html
QUESTION 68
In which portion of the frame is the 802.1q header found?
A.
B.
C.
D.

within the Ethernet header
within the Ethernet payload
within the Ethernet FCS
within the Ethernet source MAC address

Correct Answer: A
Section: Layer 2 Technologies
Explanation
Explanation/Reference:
Explanation:
Frame format

Insertion of 802.1Q tag in an Ethernet frame
802.1Q does not encapsulate the original frame. Instead, for Ethernet frames, it adds a 32-bit field between the source MAC address and the EtherType/
length fields of the original frame
Reference: http://en.wikipedia.org/wiki/IEEE_802.1Q
QUESTION 69
Which VLAN range is eligible to be pruned when a network engineer enables VTP pruning on a switch?
A.
B.
C.
D.

VLANs 1-1001
VLANs 1-4094
VLANs 2-1001
VLANs 2-4094

Correct Answer: C

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Section: Layer 2 Technologies
Explanation
Explanation/Reference:
Explanation:
VTP pruning should only be enabled on VTP servers, all the clients in the VTP domain will automatically enable VTP pruning. By default, VLANs 2 1001 are pruning eligible, but VLAN 1 can't be pruned because it's an administrative VLAN. Both VTP versions 1 and 2 supports pruning.
Reference: http://www.orbit-computer-solutions.com/VTP-Pruning.php
QUESTION 70
Which feature must be enabled to eliminate the broadcasting of all unknown traffic to switches that are not participating in the specific VLAN?
A.
B.
C.
D.

VTP pruning
port-security
storm control
bpdguard

Correct Answer: A
Section: Layer 2 Technologies
Explanation
Explanation/Reference:
Explanation:
VTP ensures that all switches in the VTP domain are aware of all VLANs. However, there are occasions when VTP can create unnecessary traffic. All
unknown unicasts and broadcasts in a VLAN are flooded over the entire VLAN. All switches in the network receive all broadcasts, even in situations in
which few users are connected in that VLAN. VTP pruning is a feature that you use in order to eliminate or prune this unnecessary traffic.
Reference: http://www.cisco.com/c/en/us/support/docs/lan-switching/vtp/10558- 21.html#vtp_pruning
QUESTION 71
Refer to the exhibit.

The users in an engineering department that connect to the same access switch cannot access the network. The network engineer found that the
engineering VLAN is missing from the database.
Which action resolves this problem?

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D. C.1q.IT Certifications . Then.A. Disable VTP pruning and disable 802. you will need to enable 802.1q. so to enable vlan 10 on this switch you will first need to change the VTP mode from client to server. B. QUESTION 72 Refer to the exhibit.vceplus. Update the VTP revision number. Enable VTP pruning and disable 802.VCE to PDF Converter .VCE Online . Change VTP mode to server and enable 802.com .Download A+ VCE (latest) free Open VCE Exams .1Q trunking to pass this new VLAN along to the other switches. www. Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Only VTP servers can add new VLANs to the switched network.1q.VCE Exam Simulator .

B. Manually force trunking with switchport mode trunk on both switches. D.IT Certifications . but users in company A are not able to access network resources in company B when DTP is enabled.Download A+ VCE (latest) free Open VCE Exams .VCE Exam Simulator .The network switches for two companies have been connected and manually configured for the required VLANs.VCE Online . Delete vlan. www. Which action resolves this problem? A.com . Enable the company B switch with the vtp mode server command.dat and ensure that the switch with lowest MAC address is the VTP server. Disable DTP and document the VTP domain mismatch.vceplus. C.VCE to PDF Converter .

There are 2 different methods for trunking.1Q and ISL.VCE to PDF Converter . The only viable solution is that there is a DTP issues and so you must instead manually configure the trunk ports between these two switches so that the VLAN information can be sent to each switch. Use trunk pruning vlan 1. Of these.VCE Exam Simulator . Upgrade to VTP version 3 for advanced feature set support. Manually prune default VLAN with switchport trunk allowed vlans remove. C. PPP encapsulation with a virtual template Link Aggregation Protocol at the access layer dot1q VLAN trunking Inter-Switch Link Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Here the question asks for transporting "frames and IP traffic for different broadcast domains that are mutually isolated" which is basically a long way of saying VLANs so trunking is needed to carry VLAN information.vceplus. QUESTION 73 A network engineer must implement Ethernet links that are capable of transporting frames and IP traffic for different broadcast domains that are mutually isolated. B. Which Cisco IOS switching feature can be used to achieve the task? A. only 802. Enable VTP pruning on the VTP server. QUESTION 74 Which action allows a network engineer to limit a default VLAN from being propagated across all trunks? A. 802. The VTP domain names do match and they are both VTP servers so there are no issues there.VCE Online . Consider that this is a multivendor environment.Download A+ VCE (latest) free Open VCE Exams .1Q is supported by multiple vendors since ISL is a Cisco proprietary protocol. B. D.IT Certifications . D. Correct Answer: C Section: Layer 2 Technologies Explanation www.Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Since the number of existing VLANs differ on the switches (9 on A and 42 on B) we know that there is a problem with VTP or the trunking interfaces. C.com .

C. you must configure all switches in the service-provider network to be able to process maximum frames by increasing the switch system MTU size to at least 1504 bytes. B. D.1_13_ea1/confi guration/guide/swtunnel. Because the 802. QUESTION 75 What is required for a LAN switch to support 802. The "trunk pruning vlan 1" option is not a valid command.VCE Online .VCE to PDF Converter .1q Q-in-Q encapsulation? A. B.IT Certifications .vceplus. How many bytes are added to each frame as a result of the configuration? A. Support less than 1500 MTU Support 1504 MTU or higher Support 1522 layer 3 IP and IPX packet Support 1547 MTU only Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: The default system MTU for traffic on Catalyst switches is 1500 bytes. D.html QUESTION 76 Refer to the exhibit.com .Download A+ VCE (latest) free Open VCE Exams . C.cisco.VCE Exam Simulator . 4-bytes except the native VLAN 8-bytes except the native VLAN 4-bytes including native VLAN 8-bytes including native VLAN www.1Q tunneling (Q-in-Q) feature increases the frame size by 4 bytes when the extra tag is added.com/en/US/docs/switches/lan/catalyst3550/software/release/12.Explanation/Reference: Explanation: Manaully pruning the default VLAN (1) can only be done with the "switchport trunk allowed vlans remove" command. VLAN 1 is not VTP pruning eligible so it cannot be done via VTP pruning. Reference: http://www.

the lower the priority. Only the combinations auto-auto. Only the combinations active-desirable. B. Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: A LACP port priority is configured on each port using LACP.desirable. Configure LACP port-priority on G0/1 to 65535. except the native VLAN. and on. desirable. all VLAN packets are tagged on the trunk link. PagP modes are active. and G0/4 between two switches using Ethernet portchannel. and on-on allow the formation of a channel. Configure G0/1 as half duplex and G0/2 as full duplex. active. D. desirable. C. Two bytes are used for the tag protocol identifier (TPID).Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: In 802.IT Certifications .com . LACP traffic goes through G0/4 because it is the highest interface ID. QUESTION 77 A network engineer configured a fault-tolerance link on Gigabit Ethernet links G0/1. and on.cisco.com/c/en/us/td/docs/ios/12_2sb/feature/guide/gigeth.VCE to PDF Converter . and on-on allow the formation of a channel. A VLAN tag adds 4 bytes to the frame. LACP uses the port priority with the port number to form the port identifier.VCE Exam Simulator . and on-on allow the formation of a channel. The valid range is from 1 to 65535. D. Correct Answer: A Section: Layer 2 Technologies www. and on-on allow the formation of a channel.html#wp1081491 QUESTION 78 Which statement about the use of PagP link aggregation on a Cisco switch that is running Cisco IOS Software is true? A. G0/2. Which action allows interface G0/1 to always actively forward traffic in the port-channel? A. Configure LACP port-priority on G0/1 to 1. The default is 32768. the other two bytes for tag control information (TCI). Reference: http://www.VCE Online . desirable. B. desirable. desirable. Only the combinations auto-desirable. desirable.Download A+ VCE (latest) free Open VCE Exams . desirable. PagP modes are off. auto. The port priority can be configured automatically or through the CLI. and on. PagP modes are off.desirable. and on.desirable. PagP modes are active.vceplus. The higher the number. The port priority determines which ports should be put in standby mode when there is a hardware limitation that prevents all compatible ports from aggregating.1Q trunking. G0/3. Only the combinations active-active.desirable. desirable. C.

vceplus. desirable: PagP is running actively.com . the device on the other side must have PagP set to on. and on-on will allow a channel to be formed. off: PagP will not run.Download A+ VCE (latest) free Open VCE Exams .VCE to PDF Converter . however.desirable. The channel is forced to remain down. 1.Explanation Explanation/Reference: Explanation: PagP modes are off. 4.html QUESTION 79 Refer to the exhibit. and on. www. desirable. auto: PagP is running passively. If a device on one side of the channel does not support PagP.cisco.VCE Exam Simulator .switches/21041-131. The formation of a channel is desired.IT Certifications . Only the combinations auto-desirable. such as a router. Only the combinations of auto-desirable.com/c/en/us/support/docs/switches/catalyst-2900-xl-series. desirable. it is not initiated. on: PagP will not run. and on-on will allow a channel to be formed. 3. Reference: http://www. The PagP modes are explained below. The formation of a channel is desired and initiated.VCE Online . desirable-desirable. auto. The channel is forced to come up. 2.

B.vceplus. C. Link Combination Control Protocol Port Aggregation Protocol Port Combination Protocol Link Aggregation Control Protocol www.VCE Exam Simulator .IT Certifications .Which EtherChannel negotiation protocol is configured on the interface f0/13 f0/15? A.com .VCE Online .VCE to PDF Converter . D.Download A+ VCE (latest) free Open VCE Exams .

In this example. The link aggregate is formed if the other end runs in LACP active or passive mode.vceplus. desirable.IT Certifications . and on. auto: PAgP is running passively. We do not send or understand the LACP packet. the switch neither sends the LACP packet nor processes any inbound LACP packet. and on-on will allow a channel to be formed.desirable. 2. Passive: The switch does not initiate the channel but does understand inbound LACP packets. Only the combinations auto-desirable. the network engineer configured an EtherChannel on interfaces Fa1/0 and Fa0/1 of the server farm switch. it is not initiated. 4. however. which is only a PAgP mode. auto. To increase bandwidth. This is similar to the off state for PAgP. fa0/14.In other words.VCE Online . 1.Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: PAgP modes are off. eventually to form the aggregation channel with the peer. The formation of a channel is desired and initiated.Download A+ VCE (latest) free Open VCE Exams . The formation of a channel is desired. and fa0/15 are all in Port Channel 12. Active: We can form an aggregate link and initiate the negotiation. 3.VCE to PDF Converter . desirable.com . The peer (in active state) initiates negotiation (when it sends out an LACP packet) which we receive and answer. Users of PC-1 experience slow connection when a webpage is requested from the server. QUESTION 80 Refer to the exhibit. which is operating in desirable mode. This is similar to the desirable mode of PAgP. we see that fa 0/13. The channel is forced to remain down.VCE Exam Simulator . This is similar to the auto mode in PAgP. The channel is forced to come up. on: PAgP will not run. off: PAgP will not run. This is similar to the on state for PAgP. as shown here: www. Off: The link aggregation is not formed. desirable: PAgP is running actively. The Link Aggregate Control Protocol (LACP) trunking supports four modes of operation: On: The link aggregation is forced to be formed without any LACP negotiation .

Disable EtherChannel load balancing. QUESTION 81 A network engineer changed the port speed and duplex setting of an existing EtherChannel bundle that uses the PAgP protocol. C. Which statement describes what happens to all ports in the bundle? A.VCE Exam Simulator .VCE to PDF Converter . B. and since the load balancing method is source MAC. D.vceplus. D.IT Certifications . since the web server has two NICs traffic will be load balanced across both MAC addresses. PAgP drops the ports that do not match the configuration. Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Since this traffic is coming from PC-1. Which action can the engineer take to resolve this issue? A.Server_Switch#sh etherchannel load-balance EtherChannel Load-Balancing Operational State (src-mac): Non-IP: Source MAC address IPv4: Source MAC address IPv6: Source IP address Server_Switch# HoweIer. PAgP changes the port speed and duplex for all ports in the bundle. C. Contact Cisco TAC to report a bug on the switch. PAgP does not change the port speed and duplex for all ports in the bundle until the switch is rebooted.VCE Online . Upgrade the switch IOS to IP services image.com . traffic is still slow. B. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: PAgP aids in the automatic creation of EtherChannel links. traffic will only be using one of the port channel links.Download A+ VCE (latest) free Open VCE Exams . PAgP changes the port speed but not the duplex for all ports in the bundle. The load balancing method should be changed to destination MAC. the source MAC address will always be that of PC-1. PAgP packets are sent between EtherChannel-capable ports in order to negotiate the www. Change the load-balance method to dst-mac.

VCE Exam Simulator . Reference: http://www. and all must be configured as either Layer 2 or Layer 3 interfaces. The EtherChannel provides full-duplex bandwidth up to 1000 Mbps only for Fast EtherChannel or 10 Gbps only for Gigabit EtherChannel. and on-on allow the formation of a channel.cisco. D.html QUESTION 83 Refer to the exhibit.VCE to PDF Converter . A switch can support up to eight compatibly configured Ethernet interfaces in an EtherChannel.com/c/en/us/support/docs/lan-switching/etherchannel/12023-4.IT Certifications . All interfaces in each EtherChannel must be the same speed. A switch can support up to 10 compatibly configured Ethernet interfaces in an EtherChannel. A switch can support up to eight compatibly configured Ethernet interfaces in an EtherChannel.com/c/en/us/support/docs/lan-switching/etherchannel/12023-4.VCE Online . auto. If speed and duplex change when a bundle exists. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: An EtherChannel consists of individual Fast Ethernet or Gigabit Ethernet links bundled into a single logical link. The EtherChannel provides full-duplex bandwidth up to 800 Mbps (Fast EtherChannel) or 8 Gbps (Gigabit EtherChannel) between your switch and another switch or host.com . The device on the other side must have PAgP set to on if a device on one side of the channel does not support PAgP.vceplus. all ports in the bundle are modified to match that VLAN. www. Each EtherChannel can consist of up to eight compatibly configured Ethernet interfaces. PAgP requires that all ports in the channel belong to the same VLAN or are configured as trunk ports. The EtherChannel provides full-duplex bandwidth up to 1000 Mbps only for Fast EtherChannel or 8 Gbps only for Gigabit EtherChannel.html QUESTION 82 Which statement about using EtherChannel on Cisco IOS switches is true? A. Reference: http://www. such as a router. When a bundle already exists and a VLAN of a port is modified. ·PAgP modes are off. Some restrictions are deliberately introduced into PAgP. The restrictions are: ·PAgP does not form a bundle on ports that are configured for dynamic VLANs. The EtherChannel provides full-duplex bandwidth up to 800 Mbps only for Fast EtherChannel or 16 Gbps only for Gigabit EtherChannel. Only the combinations auto-desirable. A switch can support up to 10 compatibly configured Ethernet interfaces in an EtherChannel. B.desirable. and on.cisco.formation of a channel. The EtherChannel provides full-duplex bandwidth up to 800 Mbps only for Fast EtherChannel or 8 Gbps only for Gigabit EtherChannel. desirable. C.Download A+ VCE (latest) free Open VCE Exams . ·PAgP does not group ports that operate at different speeds or port duplex. PAgP changes the port speed and duplex for all ports in the bundle. desirable.

Download A+ VCE (latest) free Open VCE Exams .VCE Online . Fa0/14.vceplus. Physical port Fa0/13.com . and Fa0/15 successfully formed a Layer 3 physical port-channel interface using an open standard protocol.VCE to PDF Converter . and Fa0/15 successfully formed a Layer 2 physical port-channel interface using a Cisco proprietary protocol. Physical port Fa0/13. C. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: www. Fa0/14. Fa0/14.Which statement about switch S1 is true? A. and Fa0/15 successfully formed a Layer 3 port-channel interface using a Cisco proprietary protocol.IT Certifications . D.VCE Exam Simulator . and Fa0/15 successfully formed a Layer 2 port-channel interface using an open standard protocol. Logical port Fa0/13. Logical port Fa0/13. B. Fa0/14.

D. it responds with an 802.vceplus.1D configuration BPDUs and TCN BPDUs on a per-port basis. 802.1D BPDUs.2SX/configuration/guide/book/spantree.1d BPDU. D.1d BPDU? A. However.1d does not understand RSTP BPDUs because they are different versions. C.1D BPDU after the port migration-delay timer has expired.html QUESTION 85 When two MST instances (MST 1 and MST 2) are created on a switch. and RSTP BPDUs are sent. 802.1d BPDU.1d BPDU. it assumes that it is connected to an 802. the switch processes all BPDUs received on that port and ignores the protocol type. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: For backward compatibility with 802.1d understands RSTP BPDUs because they are the same version. 802.Explanation: These three ports show that they are in Port Channel 1. which is Cisco proprietary.1D switches. the migrate-delay timer is started (specifies the minimum time during which RSTP BPDUs are sent).VCE Exam Simulator . B. but when a RSTP switch receives a 802. The protocol used for this port channel shows as LACP. it restarts the timer and starts using RSTP BPDUs on that port. if the RSTP switch is using 802. RSTP selectively sends 802. B.1d BPDU and eventually the two switches run 802.VCE Online . but when a RSTP switch receives an 802. C.com . what is the total number of spanning-tree instances running on the switch? A.1d understands RSTP BPDUs because they are the same version. as opposed to PagP.1d BPDU. which is a standards based protocol.Download A+ VCE (latest) free Open VCE Exams . 802. While this timer is active. and the (SU) means they are in use and operating at layer 2. but when a RSTP switch receives a 802. it does not respond with a 802. but when a RSTP switch receives a 802.1D switch and starts using only 802.1d to communicate.IT Certifications . QUESTION 84 What happens on a Cisco switch that runs Cisco IOS when an RSTP-configured switch receives 802. If the switch receives an 802.1d BPDU and eventually the two switches run 802. it does not respond with a 802.1d does not understand RSTP BPDUs because they are different versions. When a port is initialized.1d to communicate.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12. it responds with a 802.1d to communicate.VCE to PDF Converter .1D BPDUs on a port and receives an RSTP BPDU after the timer has expired. Reference: http://www.cisco.1d BPDU. 1 2 3 4 Correct Answer: C Section: Layer 2 Technologies Explanation www.1d BPDU and eventually the two switches run 802.

www. known as the IST. such as root bridge ID. In the case for this question. MST establishes and maintains IST.com .VCE Online .Explanation/Reference: Explanation: Unlike other spanning tree protocols.html QUESTION 86 Refer to the exhibit. The IST is the only spanning tree instance that sends and receives BPDUs.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12.IT Certifications . even if regions A and B are interconnected. An MST instance is local to the region. CIST. and so forth. but each MST instance has its own topology parameters. All of the other spanning tree instance information is contained in MSTP records (M-records).vceplus.VCE to PDF Converter . Reference: http://www. there will be the 2 defined MST instances.Download A+ VCE (latest) free Open VCE Exams . A CIST is a collection of the ISTs in each MST region.cisco. in which all the spanning tree instances are independent. MST maintains multiple spanning tree instances. Within each MST region. All MST instances within the same region share the same protocol timers. Because the MST BPDU carries information for all instances. all VLANs are assigned to the IST. All other MST instances are numbered from 1 to 4094. MST instance 1 in region A is independent of MST instance 1 in region B. which are 65sername6565eed within MST BPDUs. Instance 0 is a special instance for a region. for example.VCE Exam Simulator .2SX/configuration/guide/book/spantree. The CST interconnects the MST regions and single spanning trees. and CST spanning trees: An IST is the spanning tree that runs in an MST region. root path cost. and the special 0 instance. for a total of 3 instances. By default. the number of BPDUs that need to be processed to support multiple spanning tree instances is 65sernamcantly reduced.

Which action is needed to modify the Layer 2 spanning-tree network so that traffic for PC1 VLAN from switch SW3 uses switchport f1/1 as a primary port? A.f1/0 and f1/1 have the same end-to-end path cost to the designated bridge.VCE Exam Simulator .VCE Online . B. You can assign higher priority values to LAN ports www.vceplus. C. Modify the spanning-tree port-priority on SW2 f1/1 to 16 and f1/0 to 0. STP considers port priority when selecting a LAN port to put into the forwarding state.com . D. Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: If a loop occurs.Download A+ VCE (latest) free Open VCE Exams .IT Certifications . Modify the spanning-tree port-priority on SW2 f1/1 to 0 and f1/0 to 16.VCE to PDF Converter . Modify the spanning-tree port-priority on SW1 f1/1 to 16 and f1/0 to 0. Modify the spanning-tree port-priority on SW1 f1/1 to 0 and f1/0 to 16.

The switch priority for VLAN 1 and the macro specifies "This Bridge is the root".1_9_ea1/config uration/guide/swstp. Reference: http://www. STP puts the LAN port with the lowest LAN port number in the forwarding state and blocks other LAN ports.vceplus. C. The bridge priority is 1 and all ports are forwarding. The possible priority range is 0 through 240 (default 128).cisco. B.com/en/US/docs/switches/lan/catalyst2950/software/release/12.that you want STP to select first and lower priority values to LAN ports that you want STP to select last.Download A+ VCE (latest) free Open VCE Exams . The bridge priority is 128.IT Certifications .com .19 and all ports are forwarding.VCE Online . Why would the switch be considered as a root bridge? A.VCE Exam Simulator .html#wp1105354 QUESTION 87 Refer to the exhibit. www.VCE to PDF Converter . configurable in increments of 16. If all LAN ports have the same priority value. A lower path cost represents higher-speed transmission and is preferred.

D.Download A+ VCE (latest) free Open VCE Exams . The lower the number.1_9_ea1/config uration/guide/swstp. it has the lowest priority value for VLAN 1. Reference: http://www.VCE Exam Simulator . the default is 32768.vceplus. the range is 0 to 61440 in increments of 4096. which option will be the new root port for VLAN 10? A.com/en/US/docs/switches/lan/catalyst2950/software/release/12.cisco.VCE Online . the more likely the switch will be chosen as the root switch. The switch priority value is zero. interface f0/13 B. interface f0/14 C.com . Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: For priority.html#wp1020666 QUESTION 88 Refer to the exhibit. All ports are members of VLAN 10. Considering the default cost of upstream bridges to the root bridge is equal.VCE to PDF Converter . interface f0/15 www.IT Certifications .

extremenetworks.Download A+ VCE (latest) free Open VCE Exams . These steps are outlined as follows. it takes 30 to 60 seconds for the PC to see any activity on the network interface card.A port that would cause a switching loop.VCE Exam Simulator . Total  Path Cost  to root .Blocking . this process could take from 30-60 seconds. 68sername68e f0/21 Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Root Port election on each bridge Each (non-Root) bridge has exactly one Root Port. Reference: https://community. no user data is sent or received but it may go into forwarding mode if the other links in use were to fail and the spanning tree algorithm determines the port may transition to the forwarding state. C. Configure port to duplex full and speed 1000. which represents the best path to the Root Bridge.lowest prevail– Local  Port ID  . 2.lowest prevails Connected  Port ID  (Port Priority + Port#) .lowest prevails In this case.VCE to PDF Converter . BPDU data is still received in blocking state. The engineer observes that when the PC is connected to the network.com . from the direction of Root Bridge) Connected  Bridge ID  . each port goes through 4 states to ensure that there are no physical loops in the layer 2 broadcast domain.IT Certifications .vceplus.Listening .The switch processes BPDUs and awaits possible new information that would cause it to return to the blocking state. 1. B. so it will be th root port. www.D. With the initial version of spanning tree.VCE Online .lowest prevails (local Root Port cost added upon receipt of Configuration –PDUs on that port. Configure spanning-tree portfast. fa0/21 has te lowest cost.com/extreme/topics/802_1d_spanning_tree_election_rules QUESTION 89 A network engineer is trying to deploy a PC on a network. Configure no switchport. D. Which Layer 2 enhancement can be used to eliminate this delay? A. Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: When first powered on. Configure port duplex and speed to auto negotiation.

the port goes into the spanning-tree inconsistent state.A port receiving and sending data. STP still monitors incoming BPDUs that would indicate it should return to the blocking state to prevent a loop. If an interface is enabled for portfast receives BDPU.Learning . the port does not go through the spanning-tree listening. However. and forwarding states. The port goes into loop-inconsistent state and stops forwarding traffic. If an interface is enabled for portfast receives BDPU. C. D.3.cmed.vceplus. the port goes through the spanning-tree listening. learning. QUESTION 91 Which statement describes what happens when a port configured with root guard receives a superior BPDU? A. then the default action of STP of listening.us/Home/ethernet-and-ip/spanning-tree-protocol QUESTION 90 A network engineer configured an Ethernet switch using these commands. The port goes into BPDU-inconsistent state and stops forwarding traffic. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: STP PortFast causes a Layer 2 LAN interface configured as an access port to enter the forwarding state immediately. B.VCE Exam Simulator . bypassing the listening and learning states. If an interface is enabled for portfast receives BDPU. Reference: http://net. B. and forwarding states should be used. the "Spanning-tree portfast bpdufilter default" command specifies that if a BPDU is received on that port.VCE to PDF Converter . Switchone(config) # Spanning-tree portfast bpdufilter default Which statement about the spanning-tree portfast feature on the switch is true? A. STP PortFast causes a Layer 2 LAN interface configured as an access port to enter the forwarding state immediately. learning.com . normal operation. D. Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: www.IT Certifications .VCE Online .While the port does not yet forward frames (packets) it does learn source addresses from frames received and adds them to the filtering database (switching database) 4. The port goes into root-inconsistent state and stops forwarding traffic. and forwarding states. learning.Download A+ VCE (latest) free Open VCE Exams . the port is shut down immediately. If an interface is enabled for portfast receives BDPU. The port goes into errdisabled state and stops forwarding traffic. C. bypassing the listening and learning states.Forwarding .

It is not available in VSS. the root guard enforces the position of the root bridge. If the bridge receives superior STP Bridge Protocol Data Units (BPDUs) on a root guardenabled port. unless two or more ports of the root bridge are connected together. mLACP does not support half-duplex links. It is available only on a Cisco Catalyst 6500 Series chassis.com . Converting a port channel to mLACP can cause a service disruption. Normally. root bridge ports are all designated ports. C.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00800ae96b. It does not support 1Gb links.vceplus. follow these guidelines and restrictions: PFC3A mode does not support the mLACP for server access feature. Reference: http://www. Converting a port channel to mLACP can cause a service disruption.html QUESTION 93 What is the maximum number of 10 Gigabit Ethernet connections that can be utilized in an EtherChannel for the virtual switch link? A.cisco.cisco.Download A+ VCE (latest) free Open VCE Exams . Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: When configuring mLACP for Server Access. D.2SX/configuration/guide/mla cp_server_support.shtml QUESTION 92 Which statement about restrictions for multichassis LACP is true? A. The DHD system priority must be lower (higher numerically) than the PoA system priority.VCE to PDF Converter . D. No traffic is forIarded across this port.com/en/US/docs/switches/lan/catalyst6500/ios/12. No more than 100 VLANs can be active on a switch configured as a PoA. root guard moves this port to a root-inconsistent STP state. B. VSS mode does not support the mLACP for server access feature. 4 6 8 12 www.VCE Exam Simulator .IT Certifications . mLACP does not support multiple neighbors. This root-inconsistent state is effectively equal to a listening state. In this way.VCE Online .Explanation: The root guard ensures that the port on which root guard is enabled is the designated port. C. Reference: http://www. B.

and only the new active virtual switch continues to forward traffic.VCE to PDF Converter . The VSS transitions to the dual active recovery mode.com/en/US/prod/collateral/switches/ps5718/ps9336/prod_qas0900aecd806ed74 b. The new active virtual switch continues to forward traffic on all links. The VSS transitions to the dual active recovery mode.vceplus. the VSS will transition to the dual active recovery mode.cisco.com/en/US/prod/collateral/switches/ps5718/ps9336/prod_qas0900aecd806ed74 b.cisco.2 (33)SXI) In the dual active recovery mode.VCE Exam Simulator .VCE Online .html QUESTION 94 Which statement describes what happens if all VSL connections between the virtual switch members are lost? A. C. B. D.Download A+ VCE (latest) free Open VCE Exams .Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: The VSS is made up of the following: Virtual switch members: Cisco Catalyst 6500 Series Switches (up to two switches with initial release) deployed with the Virtual Switching Supervisor 720 10GE Virtual switch link (VSL): 10 Gigabit Ethernet connections (up to eight using EtherChannel) between the virtual switch members. The virtual switch members reload. If for some rare reason all VSL connections are lost between the virtual switch members leaving both the virtual switch members up. Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Q. The dual active state is detected rapidly (subsecond) by any of the following three methods: Enhancement to PagP used in MEC with connecting Cisco switches L3 Bidirectional Forwarding Detection (BFD) configuration on a directly connected link (besides VSL) between virtual switch members or through an L2 link through an access layer switch L2 Fast-Hello Dual-Active Detection configuration on a directly connected link (besides VSL) between virtual switch members (supported with 12. What happens if all VSL connections between the virtual switch members are lost? A. all interfaces except the VSL interfaces are in an operationally shut down state in the formerly active virtual switch member. and both virtual switch members continue to forward traffic independently. Reference: http://www.com .html www. Reference: http://www. Both virtual switch members cease to forward traffic.IT Certifications . VSLs can be configured with up to eight links between the two switches across any combination of line cards or supervisor ports to provide a high level of redundancy.

but the new active virtual switch forwards traffic on all links.VCE Online . B. www. The new active virtual switch continues to forward traffic on all links. Use the console access to the existing and new switches to configure and verify correct device configuration.IT Certifications .VCE Exam Simulator .QUESTION 95 Which statement describes what happens when a switch enters dual active recovery mode? A. all interfaces except the VSL interfaces are in an operationally shut down state in the formerly active virtual switch member. C.cisco.vceplus. All interfaces are shut down in the formerly active virtual switch member.VCE to PDF Converter . Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: In the dual active recovery mode.html QUESTION 96 You have been asked to install and configure a new switch in a customer network. The VSS detects which system was last in active state and shuts down the other switch. The switch continues to forward traffic out all links and enables spanning tree on VSL link and all other links to prevent loops.Download A+ VCE (latest) free Open VCE Exams . Reference: http://www.com/en/US/prod/collateral/switches/ps5718/ps9336/prod_qas0900aecd806ed74 b. The switch shuts down and waits for the VSL link to be restored before sending traffic.com . D.

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VCE Online . Disable VTP pruning on SW1 only Disable VTP pruning on SW2 only Disable VTP pruning on SW4 only Disable VTP pruning on SW2. You are required to configure private VLANs for a new server deployment connecting to the SW4 switch.com .VCE to PDF Converter .Download A+ VCE (latest) free Open VCE Exams .vceplus. E. Which of the following configuration steps will allow creating private VLANs? A. D.VCE Exam Simulator . B.Examine the VTP configuration. www. C. SW4 and New_Switch Disable VTP pruning on New_Switch and SW4 only.IT Certifications .

Download A+ VCE (latest) free Open VCE Exams .VCE to PDF Converter . 3. Enable DHCP snooping on at least one VLAN. A DHCP snooping database agent should be configured. Ensure that DHCP server is connected through a trusted interface.IT Certifications . Reference: http://www. you will need to only disable pruning on the switch that contains the private VLANs. Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: Minimum DHCP Snooping Configuration The minimum configuration steps for the DHCP snooping feature are as follows: 1. 5. only SW4 will connect to servers in a private VLAN. QUESTION 97 A Cisco Catalyst switch that is prone to reboots continues to rebuild the DHCP snooping database.VCE Online . Disable Option 82 for DHCP data insertion. What is the solution to avoid the snooping database from being rebuilt after every device reboot? A.VCE Exam Simulator . E.2SX/configuration/guide/sno odhcp. B. Apply ip dhcp snooping trust on all interfaces with dynamic addresses.Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: To create private VLANs.com . C. DHCP snooping is inactive on all VLANs. In this case. D. Configure the DHCP snooping database agent.vceplus. By default. 4. authorization www. Use IP Source Guard to protect the DHCP binding table entries from being lost upon rebooting. 2.cisco.html#wp1090479 QUESTION 98 Which portion of AAA looks at what a user has access to? A. the trust state of all interfaces is untrusted. The feature is not active until you complete this step. Define and configure the DHCP server. This step ensures that database entries are restored after a restart or switchover. By default.com/en/US/docs/switches/lan/catalyst6500/ios/12. Enable DHCP snooping globally. Enable DHCP snooping for all VLANs that are associated with the switch.

QUESTION 100 A server with a statically assigned IP address is attached to a switch that is provisioned for DHCP snooping.vceplus. so it will primarily use RADIUS for authentication and fail over to the local user database only if the RADIUS server is unreachable.VCE to PDF Converter . accounting D. Accounting: The last "A" is for accounting.Download A+ VCE (latest) free Open VCE Exams . Authorization: After initial authentication. RADIUS or TACACS+ security servers perform authorization for specific privileges by defining attribute-value (AV) pairs.VCE Exam Simulator . You can use accounting to see what users do once they are authenticated and authorized. and reporting.com/blog/data-center/what-is-aaa-and-how-do-you.VCE Online . authorization looks at what that authenticated user has access to do. auditing. you can define AAA authorization with a named list or authorization method. you could get a log of when users logged in and when they logged out. Reference: http://www. It also lists radius first then local. Depending on your security options. D.IT Certifications . auditing Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: AAA consists of the following three elements: Authentication: Identifies users by login and password using challenge and response methodology before the user even gains access to the network.com . authentication C. For more protection against malicious www. it can also support encryption.techrepublic. C. It provides a way"o" collecting security information that you can use for billing. (config)# aaa authentication login default radius local (config)# aaa authentication login login radius local (config)# aaa authentication login default local radius (config)# aaa authentication login radius local Correct Answer: B Section: Infrastructure Security Explanation Explanation/Reference: Explanation: In the command "aaa authentication login login radius local" the second login is the name of the AAA method.B.configure-it-in-the-cisco-ios/ QUESTION 99 Which command creates a login authentication method named "login" that will primarily use RADIUS and fail over to the local user database? A. For example. B. In the Cisco IOS. which would be specific to the individual user rights. with accounting.

Verify the source MAC address of all untrusted interfaces with ip dhcp snooping verify mac. Which solution ensures that the server maintains network reachability in the future? A.VCE Exam Simulator . Disable VTP and manually assign VLANs. Enable VTP version 3.cisco. the switch forwards the packet only if it is valid. Configure a static DHCP snooping binding entry on the switch. Reference: http://www.attacks. Ensure all switches are configured as VTP server mode. Disable DHCP snooping information option. the DHCP snooping binding database. C. Trust the interface that is connected to the server with the ip dhcp snooping trust command. To ensure network reachability to the server. D. ·Drops invalid ARP packets Dynamic ARP inspection determines the validity of an ARP packet based on valid IP-to-MAC address bindings stored in a trusted database.com . C.VCE Online . Configure VTP Transparent Mode.VCE to PDF Converter .Download A+ VCE (latest) free Open VCE Exams . B. On untrusted interfaces.vceplus.2_55_se/configuration/guide/scg3750/swdynarp. This database is built by DHCP snooping if DHCP snooping is enabled on the VLANs and on the switch.com/c/en/us/td/docs/switches/lan/catalyst3750/software/release/12. This capability protects the network from certain man-in-the-middle attacks. logs.IT Certifications . configure a static DHCP snooping binding entry on the switch. D. Dynamic ARP inspection ensures that only valid ARP requests and responses are relayed. The switch performs these activities: ·Intercepts all ARP requests and responses on untrusted ports ·Verifies that each of these intercepted packets has a valid IP-to-MAC address binding before updating the local ARP cache or before forwarding the packet to the appropriate destination. the switch forwards the packet without any checks. Correct Answer: C Section: Infrastructure Security Explanation Explanation/Reference: www.address command. It intercepts. the network team is considering enabling dynamic ARP inspection alongside DHCP snooping. and discards ARP packets with invalid IP-toMAC address bindings. If the ARP packet is received on a trusted interface. Which configuration must be made before the private VLAN is configured? A. Correct Answer: B Section: Infrastructure Security Explanation Explanation/Reference: Explanation: Dynamic ARP inspection is a security feature that validates ARP packets in a network. B.html QUESTION 101 A network engineer wants to ensure Layer 2 isolation of customer traffic using a private VLAN.

Static DHCP bindings are not configured on the switch. Traffic will pass accordingly after the new IP address is populated into the binding database. Correct Answer: A www. When IP source guard is enabled with this option.VCE Exam Simulator . C. DHCP snooping must be enabled on all VLANs. You can configure IP source guard with source IP address filtering. The switch forwards IP traffic when the source IP address matches an entry in the DHCP snooping binding database or a binding in the IP source binding table. Which statement describes the outcome of this scenario? A. its associated MAC address. Reference: http:// www. even if they are not utilized for dynamic address allocation. The interface that is connected to the workstation in question will be put into the errdisabled state.com/articles/article. Private VLANs are configured in the context of a single switch and cannot have members on other switches. The packets originating from the workstation are assumed to be spoofed and will be discarded.cisco.Download A+ VCE (latest) free Open VCE Exams . IP traffic is filtered based on the source IP address. An entry in this table has an IP address.VCE to PDF Converter . The switch forwards traffic only when the source IP and MAC addresses match an entry in the IP source binding table. When IP source guard is enabled with this option.html#ipsourceguard QUESTION 103 A DHCP configured router is connected directly to a switch that has been provisioned with DHCP snooping. Packets from the workstation will be rate limited according to the default values set on the switch. Which option is the cause of this issue? A. The DHCP client interfaces have storm control configured.com . The IP address of one of the workstations does not match any entries found in the DHCP binding database. However.com/c/en/us/support/docs/switches/catalyst-3750-series. IP Source Guard with the ip verify source port-security command is configured under the interfaces that connect to all DHCP clients on the switch.asp?p=29803&seqNum=6 QUESTION 102 DHCP snooping and IP Source Guard have been configured on a switch that connects to several client workstations. B. D. and its associated VLAN number. Private VLANs also carry TLVs that are not known to all types of Cisco switches.vceplus. The DHCP server does not support information option 82. B.IT Certifications . Reference: http://www. If there is no match. the packets are assumed to be spoofed and will be discarded.Explanation: You must configure VTP to transparent mode before you can create a private VLAN. clients are not receiving an IP address via the DHCP server. The switch uses the IP source binding table only wIen IP source guard is enabled. IP traffic is filtered based on the source IP and MAC addresses.switches/72846-layer2-secftrs-catl3fixed. C.ciscopress. or with source IP and MAC address filtering. D.VCE Online . Correct Answer: D Section: Infrastructure Security Explanation Explanation/Reference: Explanation: The IP source binding table has bindings that are learned by DHCP snooping or are manually configured (static IP source bindings).

html#wp1069615 QUESTION 104 A switch is added into the production network to increase port capacity. using the ip verify source port. The configured SVIs on the switch have been removed for the associated interfaces.com/c/en/us/td/docs/switches/lan/catalyst3550/software/release/12. The port ACL allows only IP traffic with a source IP address in the IP source binding table and denies all other traffic. You can configure IP source guard with source IP address filtering or with source IP and MAC address filtering. there are two caveats: The DHCP server must support option 82. The MAC address of the DHCP client is learned as a secure address only when the switch receives non-DHCP data traffic. The IP source binding table has bindings that are learned by DHCP snooping or are manually configured (static IP source bindings). The local DHCP server is disabled prior to enabling IP Source Guard. No VLANs exist on the switch and/or the switch is configured in VTP transparent mode.2_25_see/configuration/guide/3550SCG/ swdhcp82.2_25_see/configuration/guide/3550SCG/ swdhcp82. After IP source guard is enabled on an interface. E. You can enable IP source guard when DHCP snooping is enabled on an untrusted interface. An entry in this table has an IP address. A network engineer is configuring the switch for DHCP snooping and IP Source Guard. including access and trunk ports. but is unable to configure ip verify source under several of the interfaces.Download A+ VCE (latest) free Open VCE Exams . Reference: http://www. You can use IP source guard to prevent traffic attacks caused when a host tries to use the IP address of its neighbor.html#wp1069615 www.cisco. or the client is not assigned an IP address.VCE to PDF Converter . Which option is the cause of the problem? A. The interfaces are configured as Layer 3 using the no switchport command. B. Layer 2 interfaces by filtering traffic based on the DHCP snooping binding database and on manually configured IP source bindings. its associated MAC address.security interface configuration command. A port access control list (ACL) is applied to the interface.VCE Online .VCE Exam Simulator .cisco. IP source guard is supported only on Layer 2 ports. D. Correct Answer: B Section: Infrastructure Security Explanation Explanation/Reference: Explanation: IP source guard is a security feature that restricts IP traffic on nonrouted.com .com/c/en/us/td/docs/switches/lan/catalyst3550/software/release/12.Section: Infrastructure Security Explanation Explanation/Reference: Explanation: When you enable both IP Source Guard and Port Security. C. the switch blocks all IP traffic received on the interface. except for DHCP packets allowed by DHCP snooping. The switch is configured for sdm prefer routing as the switched database management template. Reference: http://www. The MAC address in the DHCP packet is not learned as a secure address.IT Certifications . and its associated VLAN number. The switch uses the IP source binding table only when IP source guard is enabled.vceplus.

Correct Answer: CDF Section: Infrastructure Security Explanation Explanation/Reference: Explanation: www.VCE to PDF Converter .) A.VCE Online .QUESTION 105 The command storm-control broadcast level 75 65 is configured under the switch port connected to the corporate mail server. SNMP traps are sent by default when broadcast traffic reaches 65% of the lower-level threshold. F.IT Certifications . Multicast traffic is dropped at 65% and broadcast traffic is dropped at 75% of the total interface bandwidth. In which three ways does this command impact the traffic? (Choose three. C. E. The switch resumes forwarding broadcasts when they are below 65% of bandwidth. D. Only broadcast traffic is limited by this particular storm control configuration. The switch drops broadcasts when they reach 75% of bandwidth.Download A+ VCE (latest) free Open VCE Exams .VCE Exam Simulator .com . The switchport is disabled when unicast traffic reaches 75% of the total interface bandwidth. B.vceplus.

) A. They decide to configure the network to automate the process of re-enabling user ports. You can also customize the time to recover from the specified error disable cause (default is 300 seconds) by entering the errdisable recovery interval interval command. Which two commands help trace this PC when the MAC address is known? (Choose two. Reference: http://www. the broadcast keyword was used so only broadcast traffic is limited. you can bring it out of this state automatically by configuring the errdisable recovery cause psecureviolation global configuration command or you can manually reenable it by entering the shutdown and no shut down interface configuration commands. switch(config)# errdisable recovery interval 180 switch(config)# errdisable recovery cause psecure-violation switch(config)# switchport port-security protect switch(config)# switchport port-security aging type inactivity switch(config)# errdisable recovery cause security-violation Correct Answer: B Section: Infrastructure Security Explanation Explanation/Reference: Explanation: When a secure port is in the error-disabled state.In this case. D.2_25_see/configuration/guide/3550SCG/swtrafc.pdf QUESTION 107 The network monitoring application alerts a network engineer of a client PC that is acting as a rogue DHCP server.com/c/en/us/td/docs/switches/lan/ catalyst3550/software/release/12.vceplus.html QUESTION 106 After port security is deployed throughout an enterprise campus. Which command accomplishes this task? A.VCE Exam Simulator . you can also use clear errdisable interface name vlan range command to re-enable the VLAN on the port. C. the network team has been overwhelmed with port reset requests. D. Reference: http://www.cisco. This is the default mode.cisco.Download A+ VCE (latest) free Open VCE Exams . switch# show mac address-table switch# show port-security switch# show ip verify source switch# show ip arp inspection switch# show mac address-table address <mac address> Correct Answer: AE Section: Infrastructure Security Explanation Explanation/Reference: www. C. E. If a port is in per-VLAN errdisable mode.VCE to PDF Converter .IT Certifications . B. E.com/c/en/us/td/docs/switches/lan/catalyst4500/12. B.com .2/53SG/configuration/ config/port_sec.VCE Online .

1540 Dynamic 2 FastEthernet0/5 0010. B. Reference: http://www.1_22ea/SCG/scg/swtrafc. a network engineer discovered an unusually high level of broadcast traffic coming from one of the switch interfaces.IT Certifications . A LAN storm occurs when packets flood the LAN.com . Storm control is configured for the switch as a whole but operates on a perport basis. Storm control uses rising and falling thresholds to block and then restore the forwarding of broadcast. storm control is disabled. creating excessive traffic and degrading network performance.1545 Dynamic 2 FastEthernet0/5 QUESTION 108 While troubleshooting a network outage. multicast.VCE Exam Simulator . or unicast storm on a port.vceplus. Which option decreases consumption of bandwidth used by broadcast traffic? A. D. Here is an example output: Switch> show mac-address-table Dynamic Addresses Count: 9 Secure Addresses (User-defined) Count: 0 Static Addresses (User-defined) Count: 0 System Self Addresses Count: 41 Total MAC addresses: 50 Non-static Address Table: Destination Address Address Type VLAN Destination Port ------------------. E.-----------. or multicast packets.Download A+ VCE (latest) free Open VCE Exams . unicast.VCE to PDF Converter .html QUESTION 109 Which command globally enables AAA on a device? www.0de0. By default. or users issuing a denial-of-service attack can cause a storm. including the switch port that the particular host is using. mistakes in network configuration. You can also set the switch to shut down the port when the rising threshold is reached. Errors in the protocol-stack implementation.Explanation: These two commands will show the MAC address table.VCE Online . storm control SDM routing Cisco IOS parser integrated routing and bridging Dynamic ARP Inspection Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: Storm control prevents traffic on a LAN from being disrupted by a broadcast.cisco.com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/12.---.-------------------0010.7b00.e289 Dynamic 1 FastEthernet0/1 0010.7b00. C.

aaa new-model aaa authentication aaa authorization aaa accounting Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: To configure AAA authentication. AAA features are not available for use until you enable AAA globally by issuing the aaa new-model command.VCE Exam Simulator .com/c/en/us/td/docs/ios/12_2/security/configuration/guide/fsecur_c/scfathen. and ARAP connections? A. Method lists enable you to designate one or more security protocols to be used for authorization. SLIP. C.VCE to PDF Converter .Download A+ VCE (latest) free Open VCE Exams . Method lists are specific to the authorization type requested: Auth-proxy--Applies specific security policies on a per-user basis. the Cisco IOS software selects the next method listed in the method list. This process continues until there is successful communication with a listed authorization method. enable AAA by using the aaa new-model global configuration command. network IP mobile EXEC auth-proxy Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: Method lists for authorization define the ways that authorization will be performed and the sequence in which these methods will be performed. B.cisco. thus ensuring a backup system in case the initial method fails. or all methods defined are exhausted.com .IT Certifications . refer to the chapter "Configuring Authentication Proxy" in the "Traffic Filtering"and Firewalls" part of this book" Comma"ds--Applies to the EXEC mode com"ands a user issues. in sequence. C.A. D.VCE Online .vceplus. B. D. Command authorization attempts authorization for all EXEC mode commands. Cisco IOS software uses the first method listed to authorize users for specific network services. A method list is simply a named list describing the authorization methods to be queried (such as RADIUS or TACACS+). www.ht ml QUESTION 110 Which AAA Authorization type includes PPP. For detailed information on the authentication proxy feature. Reference: http://www. if that method fails to respond.

EXEC--Applies to the attributes associated with a user EXEC terminal session. the authentication server--performs the actual authentication of the client. C.1x? A. Reference: http://www.ht ml QUESTION 111 Which authentication service is needed to configure 802.IT Certifications .vceplus. SLIP. associated with a specific privilege level. Network--Applies to network connections. A. Reference: http://www. www. or ARAP connection. The Remote Authentication Dial-In User Service (RADIUS) security system with Extensible Authentication Protocol (EAP) extensions is the only supported authentication server. Reverse Access--Applies to reverse Telnet sessions.cisco.1x.pdf QUESTION 112 Refer to the exhibit.cisco. Because the switch acts as the proxy.VCE Exam Simulator .VCE Online . you are defining a particular list of authorization methods for the indicated authorization type.com . When you create a named method list. RADIUS with EAP Extension TACACS+ RADIUS with CoA RADIUS using VSA Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: lanation: With 802. D. B. This can include a PPP. the authentication service is transparent to the client.com/c/en/us/td/docs/switches/lan/catalyst2940/software/release/ 12-1_19_ea1/configuration/guide/2940scg_1/sw8021x.Download A+ VCE (latest) free Open VCE Exams .including global configuration commands. The authentication server validates the identity of the client and notifies the switch whether or not the client is authorized to access the LAN and switch services.com/c/en/us/td/docs/ios/12_2/security/configuration/guide/fsecur_c/scfathor.VCE to PDF Converter .

vceplus. meaning that credentials are not required and all sessions are allowed access immediately. D. B. None means no authentication.Download A+ VCE (latest) free Open VCE Exams .Which login credentials are required when connecting to the console port in this output? A. none required 113sernamee cisco with password cisco no username with password linepass login authentication default Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: Here the console has been configured with the NO_AUTH name. which lists none as the authentication method.VCE Exam Simulator .VCE to PDF Converter . C.IT Certifications . www.com . QUESTION 113 Refer to the exhibit.VCE Online .

so here the "aaa authentication login default group radius local line" means to use RADIUS first. line password RADIUS server. local username.vceplus." The AAA default login preference is stated in order from first to last. local username Line password. untrusted hosts with leased IP addresses trusted hosts with leased IP addresses untrusted hosts with available IP addresses trusted hosts with available IP addresses www. B. D.VCE to PDF Converter . D. if that fails use the line password.When a network administrator is attempting an SSH connection to the device. line password.IT Certifications . RADIUS server Line password.com . QUESTION 114 Which type of information does the DHCP snooping binding database contain? A. C. then if that fails use the local user database. RADIUS server. C. B. local username Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: sessions use the vty lines. Finally.VCE Online . where the configured authentication method is named "default. in which order does the device check the login credentials? A. local username.VCE Exam Simulator .Download A+ VCE (latest) free Open VCE Exams . RADIUS server.

The DHCP snooping feature performs the following activities: Validates DHCP messages received from untrusted sources and filters out invalid messages. the switch forwards the packet without any checks. A. Dynamic ARP Inspection storm control VTP pruning DHCP snooping Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: Dynamic ARP inspection determines the validity of an ARP packet based on valid IP-to-MAC address bindings stored in a trusted database. the switch forwards the packet only if it is valid. B.VCE to PDF Converter .vceplus.com/c/en/us/support/docs/switches/catalyst-3750.2SX/configuration/guide/book/snoodhcp.Download A+ VCE (latest) free Open VCE Exams .com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12. On untrusted interfaces.IT Certifications . ip dhcp trust www. Utilizes the DHCP snooping binding database to validate subsequent requests from untrusted hosts. This database is built by DHCP snooping if DHCP snooping is enabled on the VLANs and on the switch. ip dhcp snooping C. If the ARP packet is received on a trusted interface.pdf QUESTION 115 Which switch feature determines validity based on IP-to-MAC address bindings that are stored in a trusted database? A.VCE Online .VCE Exam Simulator . the DHCP snooping binding database.Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: DHCP snooping is a security feature that acts like a firewall between untrusted hosts and trusted DHCP servers.series-switches/72846-layer2-secftrs-catl3fixed. Builds and maintains the DHCP snooping binding database.cisco. Reference: http://www.html QUESTION 116 Which command is needed to enable DHCP snooping if a switchport is connected to a DHCP server? A. ip dhcp snooping trust B. which contains information about untrusted hosts with leased IP addresses. Reference: http://www.com . C. Rate-limits DHCP traffic from trusted and untrusted sources.cisco. D.

cisco. follow these guidelines: DHCP snooping is not active until you enable the feature on at least one VLAN. You may want to do this for load-balancing or redundancy purposes. B. You can also have secondary VLANs that are not associated to any promiscuous port.2SX/configuration/guide/book/snoodhcp.VCE Exam Simulator . as long as the promiscuous port and secondary VLANs are within the same primary VLAN.VCE to PDF Converter .D. Before globally enabling DHCP snooping on the switch. configure the port as untrusted by entering the no ip dhcp snooping trust interface configuration command. including the community and isolated host ports. If a Layer 2 LAN port is connected to a DHCP client.com . Private VLANs block all traffic to isolated ports www. If a Layer 2 LAN port is connected to a DHCP server. You can associate a secondary VLAN to more than one promiscuous port.vceplus. or no secondary VLANs. This port has complete isolation from other ports within the same private VLAN domain. ip dhcp snooping information Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: When configuring DHCP snooping. and enable DHCP globally on the switch. The promiscuous port can communicate with all interfaces.IT Certifications . C. D.html QUESTION 117 Which private VLAN access port belongs to the primary VLAN and can communicate with all interfaces. except that it can communicate with associated promiscuous ports. configure the port as trusted by entering the "ip dhcp snooping trust" interface configuration command.Download A+ VCE (latest) free Open VCE Exams . Reference: http://www. make sure that the devices acting as the DHCP server and the DHCP relay agent are configured and enabled.VCE Online . You can have several promiscuous ports in a primary VLAN. Isolated--An isolated port is a host port that belongs to an isolated secondary VLAN. promiscuous port isolated port community port trunk port Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: The types of private VLAN ports are as follows: Promiscuous--A promiscuous port belongs to the primary VLAN. that belong to those secondary VLANs associated to the promiscuous port and associated with the primary VLAN. associated to that port. including the community and isolated host ports? A.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12. Each promiscuous port can have several secondary VLANs.

IT Certifications . Each port is completely isolated from all other ports in the isolated VLAN.cisco. You can configure multiple isolated VLANs in a private VLAN domain. C.html QUESTION 118 Which private VLAN can have only one VLAN and be a secondary VLAN that carries unidirectional traffic upstream from the hosts toward the promiscuous ports and the gateway? A. These interfaces are isolated from all other interfaces in other communities and from all isolated ports within the private VLAN domain. You can configure multiple community VLANs in a private VLAN domain. Reference: http://www. It allows 802. Community ports communicate with other ports in the same community VLAN and with associated promiscuous ports.The primary VLAN carries traffic from the promiscuous ports to the host ports. Isolated VLAN --An isolated VLAN is a secondary VLAN that carries unidirectional traffic upstream from the hosts toward the promiscuous ports.VCE Exam Simulator . www. Reference: http://www. isolated VLAN primary VLAN community VLAN promiscuous VLAN Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: Understanding Primary. B.VCE to PDF Converter . but these ports cannot communicate with ports in any other community or isolated VLAN in the private VLAN. and to other promiscuous ports. all the traffic remains isolated within each one. Community VLAN--A community VLAN is a secondary VLAN that carries upstream traffic from the community ports to the promiscuous port and to other host ports in the same community. It allows port security to secure the MAC address that 802. and the traffic from each isolated port also remains completely separate. Traffic received from an isolated port is forwarded only to promiscuous ports.cisco.Download A+ VCE (latest) free Open VCE Exams . B.1x authenticates. Which option describes what this configuration allows? A. and Community Private VLANs Primary VLANs and the two types of secondary VLANs (isolated and community) have these characteristics: Primary VLAN-. It allows port security to secure the IP address that 802. You can have more than one isolated port in a specified isolated VLAN.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli/ CLIConfigurationGuide/PrivateVLANs. Community--A community port is a host port that belongs to a community secondary VLAN.vceplus.1x on the same interface.VCE Online . The ports within one community can communicate.1x to secure the MAC address that port security authenticates. C.html QUESTION 119 A network engineer configures port security and 802.com . both isolated and community.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli/ CLIConfigurationGuide/PrivateVLANs. Isolated.1x authenticates. Each isolated VLAN can have several isolated ports. D.except traffic from promiscuous ports.

VCE Exam Simulator .1X and Port Security You can configure port security and 802. B.vceplus. These can be dynamically learned or manually configured.IT Certifications . static trunk ports destination port for SPAN EtherChannel port group dynamic access point www.VCE Online .VCE to PDF Converter . It allows 802. If these addresses are saved in the configuration file.2/25ew/configuration/guide/conf/port_sec.1X authenticates.1X is already preventing inbound traffic on the interface from unknown MAC addresses.html QUESTION 120 Which feature describes MAC addresses that are dynamically learned or manually configured.cisco. D. B. and added to the running configuration? A. sticky dynamic static secure Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: With port security. 802. Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: 802.1X on the same interfaces.1X processes packets before port security processes them. Although sticky secure addresses can be manually configured. C.os/security/configuration/guide/sec_nx-os-cfg/sec_portsec.pdf QUESTION 121 On which interface can port security be configured? A. Reference: http://www.Download A+ VCE (latest) free Open VCE Exams . so when you enable both on an interface. stored in the address table.1x to secure the IP address that port security authenticates. Port security secures the MAC addresses that 802.com/c/en/us/td/docs/switches/datacenter/sw/4_1/nx. and added to the running configuration.D.com . the interface does not need to dynamically relearn them when the switch restarts.cisco. 802. D. Reference: http://www. it is not recommended. C. you can configure MAC addresses to be sticky.com/c/en/us/td/docs/switches/lan/catalyst4500/12. stored in the address table.

VCE Exam Simulator . Ethernet Port Channels--Port security is not supported on Ethernet port channels. Host Ports: Isolated Port (I-Port): Connects to the regular host that resides on isolated VLAN. Reference: http://www.VCE to PDF Converter . port security applies only to the access VLAN. D. C. VLAN maximums are not useful for access ports. Reference: http://en. This port communicates with P-Ports and ports on the same community VLAN. SPAN ports--You can configure port security on SPAN source ports but not on SPAN destination ports. In other words.os/security/configuration/guide/sec_nx-os-cfg/sec_portsec. The device allows VLAN maximums only for VLANs associated with the trunk port.Download A+ VCE (latest) free Open VCE Exams . it is a type of a port that is allowed to send and receive frames from any other port on the VLAN. Trunk ports--You can configure port security on interfaces that you have configured as Layer 2 trunk ports.org/wiki/Private_VLAN www. firewall or other common gateway device. This port can communicate with anything else connected to the primary or any secondary VLAN.Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: Port Security and Port Types You can configure port security only on Layer 2 interfaces.com/c/en/us/td/docs/switches/datacenter/sw/4_1/nx.com .vceplus. On an access port. Details about port security and different types of interfaces or ports are as follows: Access ports--You can configure port security on interfaces that you have configured as Layer 2 access ports.cisco. B. which port type connects the switch to the gateway router? A. Host port further divides in two types Isolated port (I-Port) and Community port (C-port). promiscuous community isolated trunked Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: There are mainly two types of ports in a Private VLAN: Promiscuous port (P-Port) and Host port. This port communicates only with P-Ports. Community Port (C-Port): Connects to the regular host that resides on community VLAN. Promiscuous port (P-Port): The switch port connects to a router.html QUESTION 122 When you configure private VLANs on a switch.VCE Online .IT Certifications .wikipedia.

Promiscuous port (P-Port): The switch port connects to a router.0/24 should be allowed on VLAN 20. DSW1 and ASW1.120.com is an IT company that has an existing enterprise network comprised of two layer 2 only switches.wikipedia. Authentication is to be done via a Radius server: Radius server host: 172.org/wiki/Private_VLAN QUESTION 124 SIMULATION SWITCH. C. which type of port must you configure the gateway router port as? A. Host port further divides in two types Isolated port (IPort) and Community port (C-port). In other words. This port communicates with P-Ports and ports on the same community VLAN.VCE Exam Simulator . Devices on VLAN 20 are restricted to the subnet of 172. For security reasons.120. Filtering should be implemented as close to the serverfarm as possible.120.Download A+ VCE (latest) free Open VCE Exams . firewall or other common gateway device.com . Reference: http://en. it is a type of a port that is allowed to send and receive frames from any other port on the VLAN. VLAN 20 is a new VLAN that will be used to provide the shipping personnel access to the server.40. You have been tasked with implementing the above access control as a prewww. promiscuous port isolated port community port access port Correct Answer: A Section: Infrastructure Security Explanation Explanation/Reference: Explanation: There are mainly two types of ports in a Private VLAN: Promiscuous port (P-Port) and Host port. Packets from devices in any other address range should be dropped on VLAN 20. The topology diagram indicates their layer 2 mapping. Packets from devices in the subnet of 172. Community Port (C-Port): Connects to the regular host that resides on community VLAN.IT Certifications .VCE to PDF Converter .VCE Online . This port can communicate with anything else connected to the primary or any secondary VLAN.46 Radius key: rad123 Authentication should be implemented as close to the host as possible. The Radius server and application servers will be installed at a future date.QUESTION 123 When you configure a private VLAN. Corporate polices do not allow layer 3 functionality to be enabled on the switches. it is necessary to restrict access to VLAN 20 in the following manner: Users connecting to VLAN 20 via portfO/1 on ASW1 must be authenticated before they are given access to the network.vceplus. B.40. Host Ports: Isolated Port (I-Port): Connects to the regular host that resides on isolated VLAN. This port communicates only with P-Ports.40. D.0/24.

condition to installing the servers.VCE to PDF Converter .vceplus.IT Certifications .VCE Exam Simulator .com . www.Download A+ VCE (latest) free Open VCE Exams .VCE Online . You must use the available IOS switch features.

VCE Exam Simulator .com .IT Certifications .Download A+ VCE (latest) free Open VCE Exams .VCE Online .VCE to PDF Converter .vceplus.www.

com .Correct Answer: Here is the solution below: Section: Infrastructure Security Explanation Explanation/Reference: The configuration: Step1: Console to ASW1 from PC console 1 ASW1(config)#aaa new-model ASW1(config)#radius-server host 172.VCE to PDF Converter .IT Certifications .vceplus.46 key rad123 ASW1(config)#aaa authentication dot1x default group radius ASW1(config)#dot1x system-auth-control www.Download A+ VCE (latest) free Open VCE Exams .39.120.VCE Exam Simulator .VCE Online .

standby priority C.vceplus.VCE to PDF Converter .VCE Online .120.0.0 0.255 DSW1(config-ext-nacl)#exit DSW1(config)#vlan access-map PASS 10 DSW1(config-access-map)#match ip address 10 DSW1(config-access-map)#action forward DSW1(config-access-map)#exit DSW1(config)#vlan access-map PASS 20 DSW1(config-access-map)#action drop DSW1(config-access-map)#exit DSW1(config)#vlan filter PASS vlan-list 20 DSW1#copy run start QUESTION 125 Which configuration command ties the router hot standby priority to the availability of its interfaces? A.com .ASW1(config)#inter fastEthernet 0/1 ASW1(config-if)#switchport mode access ASW1(config-if)#dot1x port-control auto ASW1(config-if)#exit ASW1#copy run start Step2: Console to DSW1 from PC console 2 DSW1(config)#ip access-list standard 10 DSW1(config-ext-nacl)#permit 172.Download A+ VCE (latest) free Open VCE Exams .0.VCE Exam Simulator . standby group B. backup interface www.IT Certifications .40.

com/en/US/docs/switches/lan/catalyst3550/software/release/12. C.VCE Online .VCE to PDF Converter . the hot standby priority on the device on which tracking has been configured decreases by 10.com . Reference: http://www.cisco.Download A+ VCE (latest) free Open VCE Exams . standby track Correct Answer: D Section: Infrastructure Services Explanation Explanation/Reference: Explanation: The standby track interface configuration command ties the router hot standby priority to the availability of its interfaces and is useful for tracking interfaces that are not configured for HSRP. If an interface is not tracked. For each interface configured for hot standby.1_19_ea1/confi guration/guide/swhsrp.IT Certifications . B.D. you can configure a separate list of interfaces to be tracked.vceplus.VCE Exam Simulator . D. 50 100 120 1024 Correct Answer: B Section: Infrastructure Services Explanation Explanation/Reference: Explanation: www. When a tracked interface fails.html QUESTION 126 What is the default HSRP priority? A. its state changes do not affect the hot standby priority of the configured device.

Reference: www.IT Certifications . reduces cost simplifies configuration provides two independent supervisors with two different control planes removes the need for a First Hop Redundancy Protocol Correct Answer: D Section: Infrastructure Services Explanation Explanation/Reference: Explanation: First Hop Redundancy Protocols (FHRPs) such as VRRP and HSRP were designed to allow for a highly available first IP route hop for host systems. D. The VSS IP route is highly available due to MEC and the resiliency of the VSS system.VCE to PDF Converter .VCE Exam Simulator .com .Reference: http://www.vceplus.com/en/US/docs/switches/lan/catalyst3550/software/release/12. This VSS routing instance fulfills this first-hop role without the need for a dedicated protocol. C.1_19_ea1/confi guration/guide/swhsrp.Download A+ VCE (latest) free Open VCE Exams .cisco.VCE Online . FHRPs allow two (or more) distinct routers to share a common IP address providing a redundant Layer-3 default gateway for end nodes. B. The VSS system creates a single logical router at Layer 3.html#wp1044327 QUESTION 127 Which option is a benefit of using VSS? A. VSS eliminates the need for FHRP at the aggregation layer of the data center.

D.vceplus.VCE Online .com/en/US/docs/solutions/Enterprise/Data_Center/vssdc_integrate.VCE to PDF Converter .VCE Exam Simulator . GLBP HSRP VRRP OSPF Correct Answer: C Section: Infrastructure Services Explanation Explanation/Reference: Explanation: A comparison of the three First Hop Redundancy Protocols are listed below: www.com . C.html QUESTION 128 Which First Hop Redundancy Protocol is an IEEE Standard? A.http://www.Download A+ VCE (latest) free Open VCE Exams .IT Certifications .cisco. B.

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B. you can configure a separate list of interfaces to be tracked. D.VCE Exam Simulator . 1 5 10 15 Correct Answer: C Section: Infrastructure Services Explanation Explanation/Reference: Explanation: The standby track interface configuration command ties the router hot standby priority to the availability of its interfaces and is useful for tracking interfaces that are not configured for HSRP. the hot standby priority on the device on which tracking has been configured decreases by 10. 2 4 6 8 Correct Answer: B Section: Infrastructure Services Explanation Explanation/Reference: Explanation: GLBP Virtual MAC Address Assignment www.com/2008/08/23/router-high-availability-protocol. When a tracked interface fails. its state changes do not affect the hot standby priority of the configured device.VCE to PDF Converter . D.1_19_ea1/confi guration/guide/swhsrp.cisco.comparison-2/ QUESTION 129 What is the default amount by which the hot standby priority for the router is decremented or incremented when the interface goes down or comes back up? A.com/en/US/docs/switches/lan/catalyst3550/software/release/12.Download A+ VCE (latest) free Open VCE Exams . For each interface configured for hot standby. B.IT Certifications . C.com .html QUESTION 130 What is the maximum number of virtual MAC addresses that GLBP allows per group? A.VCE Online .wordpress.vceplus. If an interface is not tracked. Reference: http://www. C.Reference: http://cciethebeginning.

C.html QUESTION 132 Which VRRP router is responsible for forwarding packets that are sent to the IP addresses of the virtual router? A. Reference: http://www. Load sharing is achieved by the AVG replying to the ARP requests with different virtual MAC addresses. D.cisco. The AVG assigns a virtual MAC address to each member of the GLBP group. B. Gateways are assigned the next MAC address in sequence. Other members of the GLBP group learn the virtual MAC addresses from hello messages.VCE to PDF Converter .vceplus. A virtual forwarder that has learned the virtual MAC address is referred to as a secondary virtual forwarder. virtual router master virtual router backup virtual router active virtual router standby Correct Answer: A Section: Infrastructure Services www.VCE Online . B. Each gateway assumes responsibility for forwarding packets sent to the virtual MAC address assigned to it by the AVG.com .html#wp1039651 QUESTION 131 Which gateway role is responsible for answering ARP requests for the virtual IP address in GLBP? A.Download A+ VCE (latest) free Open VCE Exams .A GLBP group allows up to four virtual MAC addresses per group. D.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/ft_glbp. Other group members provide backup for the AVG in the event that the AVG becomes unavailable.cisco. C. A virtual forwarder that is assigned a virtual MAC address by the AVG is known as a primary virtual forwarder. These gateways are known as active virtual forwarders (AVFs) for their virtual MAC address.VCE Exam Simulator . The AVG is responsible for answering Address Resolution Protocol (ARP) requests for the virtual IP address. Reference: http://www.com/en/US/docs/ios/12_2t/12_2t15/feature/guide/ft_glbp. active virtual forwarder active virtual router active virtual gateway designated router Correct Answer: C Section: Infrastructure Services Explanation Explanation/Reference: Explanation: GLBP Active Virtual Gateway Members of a GLBP group elect one gateway to be the active virtual gateway (AVG) for that group. Other group members request a virtual MAC address after they discover the AVG through hello messages.IT Certifications . The AVG is responsible for assigning the virtual MAC addresses to each member of the group.

VCE Online .org/rfc/rfc3768. One possible selection algorithm is to always select the first address.com . IP Address Owner The VRRP router that has the virtual router's IP address(es) as real interface address(es’. Primary IP Address An IP address selected from the set of real interface addresses. Note that if the IP address owner is available.vceplus. will respond to packets addressed to one of these IP addresses for ICMP pings.ietf.txt QUESTION 133 Which command correctly configures standby tracking for group 1 using the default decrement priority value? www.Download A+ VCE (latest) free Open VCE Exams .Explanation Explanation/Reference: Explanation: VRRP Definitions VRRP Router A router running the Virtual Router Redundancy Protocol. It consists of a Virtual Router Identifier and a set of associated IP address(es) across a common LAN.IT Certifications . then it will always become the Master. A VRRP Router may backup one or more virtual routers. and answering ARP requests for these IP addresses. when up. Virtual Router An abstract object managed by VRRP that acts as a default router for hosts on a shared LAN. Reference: http://www. Virtual Router Master The VRRP router that is assuming the responsibility of forwarding packets sent to the IP address(es) associated with the virtual router. It may participate in one or more virtual routers.VCE Exam Simulator .VCE to PDF Converter . TCP connections. This is the router that. VRRP advertisements are always sent using the primary IP address as the source of the IP packet. etc.

C.Download A+ VCE (latest) free Open VCE Exams . Which option describes the reason for this message in a GLBP configuration? www. Reference: http://www.IT Certifications . D. random delay so that all client groups do not change at the same time.VCE to PDF Converter .com .vceplus. HSRP client groups follow the master HSRP with a slight. B.cisco.A. C.com/en/US/docs/ios-xml/ios/ipapp_fhrp/configuration/15-mt/fhp.VCE Online . standby 1 track 100 standby 1 track 100 decrement 1 standby 1 track 100 decrement 5 standby 1 track 100 decrement 20 Correct Answer: A Section: Infrastructure Services Explanation Explanation/Reference: Explanation: The default decrement value for HSRP standby tracking is 10. The "standby follow" command configures an HSRP group to become a slave of another HSRP group.VCE Exam Simulator . QUESTION 134 Which command configures an HSRP group to become a slave of another HSRP group? A. B. standby slave standby group track standby follow standby group backup Correct Answer: C Section: Infrastructure Services Explanation Explanation/Reference: Explanation: Perform this task to configure multiple HSRP client groups. D.hsrp-mgo. There is no need to explicitly state the value if the desired value is the default value.html QUESTION 135 Refer to the exhibit.

0 15. If the MAC address of the interface is the same as the one reported in the error message. issue the show interface command to verify the MAC address of the interface. If the interface MAC address is different from the one reported in the error message.0.primary device for VLAN 103 and VLAN 104 · A failure of GigabitEthemet1/0/1 on primary device should cause the primary device to release its status as the primary device. B.0.shtml#dr QUESTION 136 Ferris Plastics. permit the Multicast address by permit 224. you have been asked to investigate and respond to the following question.255. In order to resolve this issue. Troubleshooting has identified several issues.Download A+ VCE (latest) free Open VCE Exams .0. Currently all interfaces are up. Note: GLBP members communicate between each other through hello messages sent every 3 seconds to the multicast address 224. D.VCE Online . with an enterprise network (access.cisco. Using the running configurations and show commands. www. %GLBP-4-DUPADDR: Duplicate address The error message indicates a possible layer2 loop and STP configuration issues. Unavailable GLBP active forwarder Incorrect GLBP IP address HSRP configured on same interface as GLBP Layer 2 loop Correct Answer: D Section: Infrastructure Services Explanation Explanation/Reference: Explanation: This section provides information you can use to troubleshoot your configuration.com .com/en/US/products/hw/switches/ps708/products_configuration_example0918 6a00807d2520. distribution and core switches) that provides LAN connectivity from user PCs to corporate servers. Inc.255.VCE to PDF Converter . · DSW1 -primary device for VLAN 101 VLAN 102 and VLAN 105 · DSW2 .102 and User Datagram Protocol (UDP) port 3222 (source and destination).IT Certifications .A. then some other device with a MAC address reports this error message. is a medium sized company.vceplus. When configuring the multicast boundary command. then it indicates that this router is receiving its own hello packets sent.255. Verify the spanning-tree topology and check if there is any layer2 loop.VCE Exam Simulator . unless GigabitEthernet1/0/1 on backup device has also failed. C. The distribution switches are configured to use HSRP to provide a high availability solution. Reference: http://www.0.

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During routine maintenance, GigabitEthernet1/0/1 on DSW1 was shut down. All other interfaces were up. DSW2 became the active HSRP device for
VLAN 101 as desired. However, after GigabitEthemet1/0/1 on DSW1 was reactivated, DSW1 did not become the active router for VLAN 101 as desired.
What needs to be done to make the group for VLAN 101 function properly?
A. Enable preempt in the VLAN 101 HSRP group on DSW1.
B. Disable preempt in the VLAN 101 HSRP group on DSW2's.
C. In the VLAN 101 HSRP group on DSW1, decrease the priority value to avaluethatis less ` than the priority value configured in the VLAN 101 HSRP
group on DSW2.
D. Decrease the decrement value in the track command for the VLAN 101 HSRP group on U DSWTs to a values less than the value in the track
command for the VLAN 101 HSRP group on DSW2.
Correct Answer: A
Section: Infrastructure Services
Explanation

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Explanation/Reference:
Explanation:

QUESTION 137
Ferris Plastics, Inc. is a medium sized company, with an enterprise network (access, distribution and core switches) that provides LAN connectivity from
user PCs to corporate servers. The distribution switches are configured to use HSRP to provide a high availability solution.
DSW1 -primary device for VLAN 101 VLAN 102 and VLAN 105
DSW2 - primary device for VLAN 103 and VLAN 104
A failure of GigabitEthemet1/0/1 on primary device should cause the primary device to release its status as the primary device, unless
GigabitEthernet1/0/1 on backup device has also failed.
Troubleshooting has identified several issues. Currently all interfaces are up. Using the running configurations and show commands, you have been
asked to investigate and respond to the following question.

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The decrement value on DSW1 should be greaterthan 5 and less than 15. You have determined that there is an issue with the decrement value in the track command for the VLAN 102 HSRP group.VCE to PDF Converter . C.com .VCE Online .vceplus. All other interfaces were up. During this time. DSW1 remained the active device for the VLAN 102 HSRP group. The decrement value on DSWTs should be greaterthan 190 and less than 200.VCE Exam Simulator . it became necessary to shut down the GigabitEthernet1/0/1 interface on DSW1. B. 0 The decrement value on DSW1 should be greaterthan 9 and less than 15. The decrement value on DSWTs should be greaterthan 195 and less than 205. D. What needs to be done to make the group function properly? A. Correct Answer: C Section: Infrastructure Services Explanation www.IT Certifications .Download A+ VCE (latest) free Open VCE Exams .During routine maintenance. E. The decrement value on DSW1 should be greaterthan 11 and less than 19.

www.VCE Exam Simulator . Because 200 .VCE to PDF Converter .11 = 189 < 190 (priority of Vlan102 on DS2). unless GigabitEthernet1/0/1 on backup device has also failed.primary device for VLAN 103 and VLAN 104 · A failure of GigabitEthemet1/0/1 on primary device should cause the primary device to release its status as the primary device.IT Certifications .Download A+ VCE (latest) free Open VCE Exams .VCE Online . we should decrement value in the track command from 11 to 18.Explanation/Reference: Explanation: Use "show run" command to show. The left Vlan102 is console1 of DS1.vceplus. The distribution switches are configured to use HSRP to provide a high availability solution. distribution and core switches) that provides LAN connectivity from user PCs to corporate servers. · DSW1 -primary device for VLAN 101 VLAN 102 and VLAN 105 · DSW2 . Using the running configurations and show commands. you have been asked to investigate and respond to the following question.com . Inc. is a medium sized company. Troubleshooting has identified several issues. Priority value is 200. QUESTION 138 Ferris Plastics. Currently all interfaces are up. with an enterprise network (access.

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VCE Exam Simulator . On DSW2. DSW2 has not become the active device for the VLAN 103 HSRP group. D. C. increase the priority value to a value greater 200 and less than 250. On DSW1.IT Certifications . increase the decrement value in the track command to a value greater than 10 and less than 50. B. As related to the VLAN 103 HSRP group. On DSW2. disable preempt. Correct Answer: C Section: Infrastructure Services Explanation Explanation/Reference: Explanation: www.All interfaces are active. decrease the priority value to a value less than 190 and greater than 150.com .VCE Online . On DSW1.Download A+ VCE (latest) free Open VCE Exams .vceplus.VCE to PDF Converter . what can be done to make the group function properly? A.

but less than 250. DSW1 will become active. we see that the active router has a priority of 200. but it should be less than 250 so that if the gig 1/0/1 interface goes down.From the output shown below of the HSRP status of DSW2. while the local priority is 190.com . so the correct answer is to increase the priority to more than 200.VCE to PDF Converter . DSW2 is configured to decrement the priority by 50 if this interface goes down.VCE Online .vceplus.Download A+ VCE (latest) free Open VCE Exams . QUESTION 139 www. We need to increase the priority of DSW2 to greater than 200.IT Certifications .VCE Exam Simulator .

www. unless GigabitEthernet1/0/1 on backup device has also failed. Inc. Troubleshooting has identified several issues. with an enterprise network (access. Using the running configurations and show commands. distribution and core switches) that provides LAN connectivity from user PCs to corporate servers.Ferris Plastics. The distribution switches are configured to use HSRP to provide a high availability solution.primary device for VLAN 103 and VLAN 104 A failure of GigabitEthemet1/0/1 on primary device should cause the primary device to release its status as the primary device.vceplus. you have been asked to investigate and respond to the following question.com .IT Certifications .Download A+ VCE (latest) free Open VCE Exams . DSW1 -primary device for VLAN 101 VLAN 102 and VLAN 105 DSW2 .VCE to PDF Converter .VCE Exam Simulator . Currently all interfaces are up.VCE Online . is a medium sized company.

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DSW1 became the active router for the VLAN 104HSRP group. it became necessary to shut down the GigabitEthernet1/0/1 interface on DSW1 and DSW2. On DSW2 decrease the priority value to a value less than 150.During routine maintenance.vceplus. decrease the decrement value in the track command to a value less than 1. As related to the VLAN 104HSRP group. Correct Answer: C Section: Infrastructure Services Explanation Explanation/Reference: www. On DSW1.com . All other interfaces were up. increase the decrement value in the track command to a value greater than 6.Download A+ VCE (latest) free Open VCE Exams .IT Certifications . disable preempt. D. C. On DSW1.VCE to PDF Converter . On DSW1.VCE Online . B. what can to be done to make the group function properly? A.VCE Exam Simulator . During this time.

com .VCE to PDF Converter . Vlan104 (right): 200 . It can not become active device when G1/0/1 on DS2 fail. Inc. DSW1 -primary device for VLAN 101 VLAN 102 and VLAN 105 DSW2 . www.6 = 144. is a medium sized company.VCE Exam Simulator .Explanation: We should NOT disable preempt on DS1. Example: if we are disable preempt on DS1. Result is priority 144 < 145 (vlan104 on DS2 is active). The distribution switches are configured to use HSRP to provide a high availability solution. If increase the decrement in the track value to a value greater than 6 (> or = 6). Result is priority 149 > 145 (Vlan104 on DS1 is active).vceplus. In this question.IT Certifications . unless GigabitEthernet1/0/1 on backup device has also failed. you will make Vlan104's HSRP group fail function.VCE Online . G0/1/0 on DS1 & DS2 is shutdown. with an enterprise network (access. Using the running configurations and show commands.primary device for VLAN 103 and VLAN 104 A failure of GigabitEthemet1/0/1 on primary device should cause the primary device to release its status as the primary device.1 = 149. Troubleshooting has identified several issues. Vlan104 (left): 150 . distribution and core switches) that provides LAN connectivity from user PCs to corporate servers. Vlan104 (left): 150 .155 = 145. QUESTION 140 Ferris Plastics. you have been asked to investigate and respond to the following question. By do that.Download A+ VCE (latest) free Open VCE Exams . Currently all interfaces are up.

VCE to PDF Converter .VCE Online .www.Download A+ VCE (latest) free Open VCE Exams .vceplus.com .IT Certifications .VCE Exam Simulator .

com .VCE Online .VCE Exam Simulator .www.Download A+ VCE (latest) free Open VCE Exams .vceplus.IT Certifications .VCE to PDF Converter .

B.What is the priority value of the VLAN 105 HSRP group on DSW2? A.VCE Exam Simulator . D.com .IT Certifications . C.Download A+ VCE (latest) free Open VCE Exams .VCE Online . www.vceplus. 50 100 150 200 Correct Answer: B Section: Infrastructure Services Explanation Explanation/Reference: Explanation: Use "show standby brief" command on console2.VCE to PDF Converter . Very easy to se" priority of Vlan1"5 is 100.

com . Currently all interfaces are up. unless GigabitEthernet1/0/1 on backup device has also failed. www. Inc.Download A+ VCE (latest) free Open VCE Exams . distribution and core switches) that provides LAN connectivity from user PCs to corporate servers. is a medium sized company.VCE to PDF Converter . DSW1 -primary device for VLAN 101 VLAN 102 and VLAN 105 D-W2 . The distribution switches are configured to use HSRP to provide a high availability solution.primary device for VLAN 103 and VLAN 104 A failure of GigabitEthemet1/0/1 on primary device should cause the primary device to release its status as the primary device. you have been asked to investigate and respond to the following question. Troubleshooting has identified several issues.VCE Exam Simulator .IT Certifications .vceplus. with an enterprise network (access.VCE Online . Using the running configurations and show commands.QUESTION 141 Ferris Plastics.

Download A+ VCE (latest) free Open VCE Exams .VCE Exam Simulator .com .VCE to PDF Converter .VCE Online .www.vceplus.IT Certifications .

vceplus.www.Download A+ VCE (latest) free Open VCE Exams .com .VCE Online .IT Certifications .VCE to PDF Converter .VCE Exam Simulator .

Download A+ VCE (latest) free Open VCE Exams . B.VCE to PDF Converter . what will be the resulting priority value of the VLAN 105 HSRP group on router DSW2? A.com .VCE Online . and the tracking feature for Gig 1/0/0 is enabled which will decrement the priority by 10 if this www. 90 100 150 200 Correct Answer: A Section: Infrastructure Services Explanation Explanation/Reference: Explanation As seen below.vceplus. D. the current priority for VLAN 105 is 100.IT Certifications .VCE Exam Simulator .If GigabitEthemet1/0/1 on DSW2 is shutdown. C.

They have questions about how these two devices will perform in the event of a device failure.VCE to PDF Converter . www.Download A+ VCE (latest) free Open VCE Exams .interface goes down for a priority value of 90.VCE Exam Simulator .IT Certifications .vceplus.VCE Online . QUESTION 142 Your customer has asked you to come in and verify the operation of routers R1 and R2 which are configured to use HSRP.com .

vceplus.com .IT Certifications .VCE Exam Simulator .VCE to PDF Converter .www.VCE Online .Download A+ VCE (latest) free Open VCE Exams .

com .VCE to PDF Converter .Download A+ VCE (latest) free Open VCE Exams .IT Certifications .www.vceplus.VCE Exam Simulator .VCE Online .

Download A+ VCE (latest) free Open VCE Exams . D.VCE Online . R1-0% R1-50 %. B.VCE Exam Simulator . R2-50% R2-100% R1-100% Correct Answer: D Section: Infrastructure Services www.vceplus.com .10.IT Certifications .0/24 subnet is being forwarded through R1? A.16.VCE to PDF Converter . C.What percentage of the outgoing traffic from the 172.

vceplus. so all outgoing traffic will be forwarded to R1.Explanation Explanation/Reference: Explanation: Based on the following output.VCE Exam Simulator . QUESTION 143 Your customer has asked you to come in and verify the operation of routers R1 and R2 which are configured to use HSRP. www.IT Certifications . we see that R1 is the active standby router for the Ethernet 0/0 link.VCE to PDF Converter .VCE Online .com .Download A+ VCE (latest) free Open VCE Exams . They have questions about how these two devices will perform in the event of a device failure.

com .VCE Online .www.Download A+ VCE (latest) free Open VCE Exams .VCE to PDF Converter .vceplus.VCE Exam Simulator .IT Certifications .

www.vceplus.VCE to PDF Converter .VCE Online .Download A+ VCE (latest) free Open VCE Exams .IT Certifications .VCE Exam Simulator .com .

E.VCE to PDF Converter . If router R1 interface Etherne0/0 goes down and recovers.com .vceplus.IT Certifications . which of the statement regarding HSRP priority is true? A. The interface will have the priority decremented by 60 for HSRP group 1 The interface will have its current priority incremented by 40 for HSRP group 1 The interface will have its current priority incremented by 60 for HSRP group 1 The interface will default to the a priority of 100 for HSRP group 1 Correct Answer: C www.VCE Online . The interface will have the priority decremented by 40 for HSRP group 1.Refer to the exhibit. B. D.Download A+ VCE (latest) free Open VCE Exams . C.VCE Exam Simulator .

However. the standby 1 track decrement command will lower the priority from 130 to 90.vceplus.VCE Online .com . www. QUESTION 144 Your customer has asked you to come in and verify the operation of routers R1 and R2 which are configured to use HSRP. when it comes back up.Section: Infrastructure Services Explanation Explanation/Reference: Explanation: Here is the HSRP configuration seen on R1: Here. it will then increment it by 40 back to 130 for HSRP group 1. They have questions about how these two devices will perform in the event of a device failure.Download A+ VCE (latest) free Open VCE Exams .VCE Exam Simulator .IT Certifications .VCE to PDF Converter . when the Ethernet 0/0 interface goes down.

VCE Exam Simulator .vceplus.Download A+ VCE (latest) free Open VCE Exams .VCE Online .VCE to PDF Converter .www.com .IT Certifications .

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C. The HSRP group number mismatch The HSRP group authentication is misconfigured The HSRP Hello packets are blocked The HSRP timers mismatch The HSRP group priorities are different Correct Answer: B www. E.com .VCE to PDF Converter .Download A+ VCE (latest) free Open VCE Exams . B. D.vceplus.VCE Online .VCE Exam Simulator .What issue is causing Router R1 and R2 to both be displayed as the HSRP active router for group 2? A.IT Certifications .

we see that authentication is configured on R2.vceplus.VCE to PDF Converter . but not on R1: www.IT Certifications .VCE Online .com .Download A+ VCE (latest) free Open VCE Exams .VCE Exam Simulator .Section: Infrastructure Services Explanation Explanation/Reference: Explanation: Based on the configuration output.

IT Certifications . www.com .VCE to PDF Converter .VCE Online .This can be further verified by issuing the "show standby" command on each router.Download A+ VCE (latest) free Open VCE Exams .vceplus.VCE Exam Simulator .

Download A+ VCE (latest) free Open VCE Exams .VCE Online .VCE Exam Simulator .IT Certifications . www.vceplus.VCE to PDF Converter .QUESTION 145 Your customer has asked you to come in and verify the operation of routers R1 and R2 which are configured to use HSRP. They have questions about how these two devices will perform in the event of a device failure.com .

vceplus.VCE Exam Simulator .IT Certifications .VCE Online .Download A+ VCE (latest) free Open VCE Exams .www.VCE to PDF Converter .com .

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0c07. F.What is the virtual mac-address of HSRP group 1? A.Download A+ VCE (latest) free Open VCE Exams . B.VCE Online . 0000.ac01 4000.com .ac02 0000.IT Certifications .0000.0000.VCE Exam Simulator .VCE to PDF Converter .ac01 4000. E.0c07.0010 www.0010 0000. D.vceplus.0000. C.ac02 4000.0c07.

Download A+ VCE (latest) free Open VCE Exams .VCE to PDF Converter .0000.IT Certifications .VCE Exam Simulator .com .VCE Online .0010 as shown below: www.Correct Answer: B Section: Infrastructure Services Explanation Explanation/Reference: Explanation: Issuing the "show standby" command on either router shows us that the virtual MAC used by HSRP group 1 is 4000.vceplus.

Which version of spanning tree is appropriate to meet the company policy? A. C. E.IT Certifications .vceplus.VCE to PDF Converter . MST PVST+ RSTP RPVST+ STP www.com . B.VCE Exam Simulator . a network engineer decides to create a separate spanning tree for every group of 10 VLANs.QUESTION 146 To follow the Layer 2 switching guidelines.Download A+ VCE (latest) free Open VCE Exams .VCE Online . D.

Download A+ VCE (latest) free Open VCE Exams . C. D. Which spanning-tree feature accomplishes this? A. Configure a SPAN session to monitor the received traffic on interface g0/5 only for VLAN 3. D.com . C. B. Configure a SPAN session to monitor the received traffic on interface g0/4 only for VLAN 3.VCE to PDF Converter . What is the result of the SPAN configuration on a Cisco switch? A. www. BPDUblock BPDUfilter BPDUignore BPDUguard BPDUdisable Correct Answer: B Section: Mix QUESTIONS Explanation Explanation/Reference: QUESTION 148 Refer to the exhibit. E.vceplus. however.VCE Exam Simulator .Correct Answer: A Section: Mix QUESTIONS Explanation Explanation/Reference: QUESTION 147 A network engineer is installing a switch for temporary workers to connect to.IT Certifications . end user connectivity is still required. The engineer does not want this switch participating in Spanning Tree with the rest of the network.VCE Online . Configure a SPAN session to monitor the received traffic on interface g0/4 for all VLANs except VLAN 3. Configure a SPAN session to monitor the received traffic on interface g0/5 for all VLANs except VLAN 3. B.

Correct Answer: A Section: Mix QUESTIONS Explanation Explanation/Reference: www.vceplus.IT Certifications .Download A+ VCE (latest) free Open VCE Exams .VCE Online .VCE to PDF Converter .com .VCE Exam Simulator .

B. EtherChannel BackboneFast BPDU guard BPDU filtering Correct Answer: C Section: (none) Explanation Explanation/Reference: Explanation:  https://supportforums. Source mac.VCE to PDF Converter . source mac.cisco. destination mac C.VCE Online . C. B. C.VCE Exam Simulator . source ip. source mac www.vceplus. D. D. write memory shutdown reload backup config Correct Answer: C Section: (none) Explanation Explanation/Reference: ——————————————————————– QUESTION 3 Which of the below options is VALID for etherchannel load-balancing? A.com . which action must be performed for the configuration to take affect? A.Экзамен A QUESTION 1 Which feature puts the port into err-disabled state when the port has PortFast enabled and receives BPDUs? A.Download A+ VCE (latest) free Open VCE Exams .com/document/15446/port-status-errdisable-due-bpdu-guard ——————————————QUESTION 2 When SDM templates are configured.IT Certifications . destination ip B.

C is right. D.D. E. destination ip. –Source port can be a physical interfaces and vlans but not a SVI. B is wrong.VCE Online . revision number and MST instance VLAN mappings. mac ip Correct Answer: B Section: (none) Explanation Explanation/Reference: ——————————————QUESTION 4 Which two statements about SPAN source and destination ports during an active session are true? (Choose two. Correct Answer: CE Section: (none) Explanation Explanation/Reference: Explanation: – You cannot engage a destination span port in multiple span session. –You can mix individual source ports and source VLANs within a single session. E is right ——————————————QUESTION 5 MST Configure on switch (spanning tree mode client) A. –In Local-SPAN span destination port does not participate in STP because STP is automatically disabled on the destination port…. same region name.vceplus.com . Correct Answer: A Section: (none) www. B. the destination port can be destination in multiple SPAN sessions The source port can be only an Ethernet physical port The destination port does not participate in STP You can mix individual source ports and source VLANs within a single session The source port can be monitored in multiple SPAN session. D... Configure Manual.) A.VCE Exam Simulator .Download A+ VCE (latest) free Open VCE Exams . A is wrong.IT Certifications .VCE to PDF Converter . B. C. C. D is wrong –The source port can be monitored in multiple SPAN session….

The egress queues calculate path usage to help ensure that the traffic load is equally partitioned.VCE to PDF Converter .IT Certifications . packets are allocated between two logical counter-rotating paths.Download A+ VCE (latest) free Open VCE Exams . Low-latency traffic is given priority. C. B. the traffic is immediately wrapped back across the single remaining 16-Gbps path to continue forwarding. Whenever a frame is ready for transmission onto the path.vceplus. Each counter-rotating path supports 16 Gbps in both directions. Enable Disable ON Off Correct Answer: B Section: (none) www. The entire frame is then copied onto this half of the path. yielding a traffic total of 32 Gbps bidirectionally. a calculation is made to see which path has the most available bandwidth. D.com/c/en/us/products/collateral/switches/catalyst-3750-series-switches/prod_white_paper09186a00801b096a.com . 32GB ? ? ? Correct Answer: A Section: (none) Explanation Explanation/Reference: Explanation: 32GB is the correct answer http://www.VCE Online .html Bidirectional Flow To efficiently load balance the traffic. Traffic is serviced depending upon its class of service (CoS) or differentiated services code point (DSCP) designation. ——————————————QUESTION 7 What’s state of port security by default in a switch? A. C. When a break is detected in a cable.cisco. B. D.Explanation Explanation/Reference: QUESTION 6 Stackwise A.VCE Exam Simulator .

dat ? ? ? Correct Answer: A Section: (none) Explanation Explanation/Reference: ——————————————QUESTION 10 Question on HSRP. The maximum number of Virtual MAC addresses that GLBP allows per group is 4 www.com .VCE to PDF Converter .Download A+ VCE (latest) free Open VCE Exams .VCE Online .vceplus. B. B. VRRP and GLBP.IT Certifications .Explanation Explanation/Reference: ——————————————QUESTION 8 Exhibit of HSRP with problem with secondary (error is duplicate IP address on 1 of switch port that duplicate with virtual ip address) A. D. D. a standby router and multiple liteners B. Misconfigure PC’s IP address STP Loop can’t remember Correct Answer: C Section: (none) Explanation Explanation/Reference: QUESTION 9 Where does a subordinate switch in a stack store the information about VLANS? A.VCE Exam Simulator . C. VRRP topology contains a master router. Which options are correct? (choose two) A. C. vlan.

C. VRRP is a Cisco proprietary redundancy protocol
D. Multivendor devices prefer to use HSRP protocol for redundancy
E. Maximum group for HSRP is 255
Correct Answer: BE
Section: (none)
Explanation
Explanation/Reference:
——————————————QUESTION 11
Which two options are two results of using the command spanning-tree vlan 50 root primary within a spanning-tree network under global configuration
(Choose two)
A.
B.
C.
D.
E.

The switchport that is configured for VLAN 50 is the primary connection to the spanning-tree root switch
The primary value for VLAN 50 is set to 4094 on the root while the local switch priority is set to 32768
All ports that are configured on the current switch with VLAN 50 transition to designated ports
Spanning tree determines the priority of the current root Vlan 50 and reduces the priority of the local switch to lower value
The spanning-tree timers are reduced to improve the convergences time for Vlan 50

Correct Answer: CD
Section: (none)
Explanation
Explanation/Reference:
——————————————QUESTION 12
One site is active on port channel what other side you can configure (passive, auto, desirable, active)? (choose two)
A.
B.
C.
D.

passive
auto
desirable
active

Correct Answer: AD
Section: (none)
Explanation

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Explanation/Reference:
LACP modes:
+ on: the link aggregation is forced to be formed without any LACP negotiation. A port-channel is formed only if the peer port is also in “on” mode.
+ off: disable LACP and prevent ports to form a port-channel
+ passive: the switch does not initiate the channel, but does understand incoming LACP packets
+ active: send LACP packets and willing to form a port-channel
The table below lists if an EtherChannel will be formed or not for LACP:
LACP Active Passive
Active Yes Yes
Passive Yes No
PAgP modes:
+ on: The link aggregation is forced to be formed without any PAgP negotiation. A port-channel is formed only if the peer port is also in “on” mode.
+ off: disable PAgP and prevent ports to form a port-channel
+ desirable: send PAgP packets and willing to form a port-channel
+ auto: does not start PAgP packet negotiation but responds to PAgP packets it receives
The table below lists if an EtherChannel will be formed or not for PAgP:
PAgP Desirable Auto
Desirable Yes Yes
Auto Yes No
——————————————
QUESTION 13
L2 etherchannel formed where do you assign IP
A.
B.
C.
D.

dhcp
physical interface
logical interface
lowest physical interface

Correct Answer: C
Section: (none)
Explanation
Explanation/Reference:
QUESTION 14
There was exhibit for RSPAN with two sessions
A. session one had destination port was missing
B. session two was properly configured
C. ?

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D. ?
Correct Answer: A
Section: (none)
Explanation
Explanation/Reference:
session 1 is not properly configured
QUESTION 15
There is native VLAN mismatch after administrator change native VLAN to VLAN 999. What can be the reason for the error message?
A.
B.
C.
D.

Native VLAN is not present
?
?
?

Correct Answer: A
Section: (none)
Explanation
Explanation/Reference:
——————————————QUESTION 16
Why is there a mismatch?
Switch1# sh etherchannel summary
Number of channel-groups in use: 1
Number of aggregators: 1
Group Port-channel Protocol Ports
1 Po1(SU) LACP Fa0/1(P), Fa0/2(P)
Switch2# sh etherchannel summary
Number of channel-groups in use: 1
Number of aggregators: 1
Group Port-channel Protocol Ports
1 Po1(SU) Fa0/1(P)
A. Port channel has not been configured properly

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the device secures MAC addresses in the same manner as dynamic address learning.IT Certifications . B. Sticky address are still in configuration Sticky address are not in configuration Sticky address can be unicast or multicast address don’t remember Correct Answer: A Section: (none) Explanation Explanation/Reference: Explanation: Sticky address are still in configuration (If you enable the sticky method.VCE to PDF Converter .VCE Exam Simulator . Protocol mismatch Correct Answer: A Section: (none) Explanation Explanation/Reference: —————————————————————————————————– QUESTION 17 What happens to the sticky address after copy run start and reboot A.com . C. Too many ports in Switch1 D.Download A+ VCE (latest) free Open VCE Exams . It can cause network access ports to go into err-disabled state It can cause routing loops It can cause a network-wide configuration change if revision number on the new switch is higher It can cause a network-wide configuration change if revision number on the new switch is lower Correct Answer: C Section: (none) www.B. B.) ———————————————————————————————————– QUESTION 18 Which statement describes one major issue that VTP can cause in an enterprise network when a new switch is introduced in the network in VTP domain server A.vceplus. Too few ports in Switch2 C.VCE Online . C. D. copy run start. These addresses can be made persistent through a reboot by copying the running-configuration to the startup-configuration. D.

C. An interface on the primary link has a problem and the admin wants to move the traffic to the other link.IT Certifications . C.Download A+ VCE (latest) free Open VCE Exams . enable MSTP and use a different revision number that all other switches disable STP globally apply root guard to all outgoing neighbour interfaces adjust STP priority to the maximum value Correct Answer: D Section: (none) Explanation Explanation/Reference: Explanation: Adjust STP priority to the maximum value (so it will never become Spanning Tree root for VLAN5) ————————————————————————————————————— QUESTION 20 Two switches had two redundant links between them.Explanation Explanation/Reference: ————————————————————————————————— QUESTION 19 A network engineer wants to make sure that an access switch will never become Spanning Tree root for VLAN 5. B. B. D. Change priority for secondary connection to a lower value than the primary Change STP mode to RSTP Configure a Point-to-point connection for the secondary link Apply bpdufilter on the primary connection Correct Answer: A Section: (none) Explanation Explanation/Reference: ——————————————QUESTION 21 Question with recognition of vlans 3050 and 3060 www. What action must he perform? A.VCE Online .vceplus.VCE to PDF Converter . D.com . What action will accomplish this task? A.VCE Exam Simulator .

IT Certifications . B.com .Download A+ VCE (latest) free Open VCE Exams .VCE Online . D.VCE to PDF Converter .vceplus.A. B. E. D.VCE Exam Simulator . D. port down and use native vlan port down and use default vlan port up and use native vlan port up and use default vlan Port will remain shutdown/inactive until it is assigned a new VLAN Correct Answer: E Section: (none) Explanation www. C. PortFast ? ? ? Correct Answer: A Section: (none) Explanation Explanation/Reference: ——————————————QUESTION 23 What would happen if we delete VLAN that exit on switchport? A. B. C. VTP version 3 ? ? ? Correct Answer: A Section: (none) Explanation Explanation/Reference: QUESTION 22 Question about the voice vlan A. C.

Explanation/Reference: ——————————————QUESTION 24 An access switch has been configured with an EtherChannel port. VTP must be stopped and restarted on the server. D. Trunk ports or EtherChannels can be configured as sources and mixed with nontrunk sources. After configuring SPAN to monitor this port. SPAN encapsulation replication must be enabled to capture EtherChannel destination traffic. www. What is the problem? A.VCE Online . but not a destination. B.VCE to PDF Converter . The port channel can be used as a SPAN source. RSPAN must be used to capture EtherChannel bidirectional traffic.Download A+ VCE (latest) free Open VCE Exams . SPAN can monitor one or more source ports or EtherChannels in a single SPAN session.vceplus. it takes up to 4 hours propagate.VCE Exam Simulator . You can configure both Layer 2 and Layer 3 ports and EtherChannels as SPAN sources. The VTP server must be reloaded. a network engineer notices that none of the VTP clients are receiving the updates. the network administrator notices that not all traffic is being replicated to the management server.com . After each update to the VTP server.IT Certifications . Correct Answer: C Section: (none) Explanation Explanation/Reference: Section: Layer 2 Technologies Explanation/Reference: Explanation: A source port or EtherChannel is a port or EtherChannel monitored for traffic analysis. What is a cause for this issue? A. VLAN filters are required to ensure traffic mirrors effectively. Another switch in the domain has a higher revision number than the server. A port-channel interface (an EtherChannel) can be a SPAN source. The VTP version number must be set to version 3. B. E. C. D. You can configure ports or EtherChannels in any VLAN as SPAN sources. C. but not a destination. ——————————————————————————————————————————QUESTION 25 After configuring new data VLANs 1020 through 1030 on the VTP server.

but it does not appear in plain text in the configuration. both with native VLAN mismatch. the key associated with the password is saved in hexadecimal format in the running configuration. A multilayer switch has been configured to send and receive encapsulated and tagged frames.Correct Answer: B Section: (none) Explanation Explanation/Reference: Section: Layer 2 Technologies Explanation/Reference: VTP version 3 supports these features that are not supported in version 1 or version 2: Enhanced authentication–You can configure the authentication as hidden or secret. B.com . the secret key from the password string is saved in the VLAN database file. VLAN ID 1 should not be used for management traffic because its unsafe. Instead. Which option is the cause of the spanning-tree error? A. VLAN spanning-tree in SW-2 is configured. You must reenter the password if you enter a takeover command in the domain. spanning-tree bpdu-filter is enabled. you cannot convert from VTP version 3 to version 1 or 2.VCE Exam Simulator . VLAN 2013 on the multilayer switch is configured as the native VLAN. ————————————————————————————————————————————— QUESTION 26 Refer to the exhibit.vceplus.1q trunks are on both sides. 802.Download A+ VCE (latest) free Open VCE Exams . When hidden. Support for extended range VLAN (VLANs 1006 to 4094) database propagation. C.VCE Online .VCE to PDF Converter . you can directly configure the password secret key.IT Certifications . D. VTP versions 1 and 2 propagate only VLANs 1 to 1005. If extended VLANs are configured. Correct Answer: C Section: (none) Explanation www. When you enter the secret keyword.

but 1 (the default native VLAN) on the other switch. B. spanning tree blocks local native VLAN traffic and the remote switch native VLAN traffic on the trunk.VCE Exam Simulator . What is the root cause of this issue? A. C. Correct Answer: C Section: (none) Explanation Explanation/Reference: Section: Layer 2 Technologies ————————————————————————————————————————————– QUESTION 28 What is the function of NSF? A.Download A+ VCE (latest) free Open VCE Exams . The VLAN template disables routing in hardware. D. The SDM template is causing the CPU of the switch to spike during peak working hours. forward traffic simultaneously using both supervisors forward traffic based on Cisco Express Forwarding provide automatic failover to back up supervisor in VSS mode provide nonstop forwarding in the event of failure of one of the member supervisors Correct Answer: D www. The switch needs to be rebooted before the SDM template takes effect.VCE Online . Native VLAN mismatches are detected via spanning tree and Cisco Discovery Protocol (CDP). the trunk still remains up for other VLANs. Failure to do this causes Cisco switches to partially shut down the trunk port because having mismatched native VLANs can result in spanning-tree loops. If you use 802. D. however. you must ensure that you choose a common native VLAN for each port in the trunk. If spanning tree detects a native VLAN mismatch.vceplus. The VLAN receives additional frames from neighbouring switches.IT Certifications . C.VCE to PDF Converter . B.1Q trunks.com .Explanation/Reference: Section: Layer 2 Technologies Explanation/Reference: Here we see that the native VLAN has been configured as 2013 on one switch. The SDM VLAN template causes the MAC address-table to overflow. ——————————————————————————————————————————— QUESTION 27 A network engineer deployed a switch that operates the LAN base feature set and decides to use the SDM VLAN template. not via DTP messages.

Switches would operate as a single logical virtual switch called a virtual switching system 1440 (VSS1440).) A. C.VSS is network system virtualization technology that pools multiple Cisco Catalyst 6500 Series Switches into one virtual switch.vceplus. VSS formed by two Cisco Catalyst 6500 Series Switches with the Virtual Switching Supervisor 720-10GE. D.VCE Online . B. In a VSS. Both chassis are kept in sync with the inter-chassis Stateful Switchover (SSO) mechanism along with Nonstop Forwarding (NSF) to provide nonstop communication even in the event of failure of one of the member supervisor engines or chassis. Only one of the virtual switch members has the active control plane. LACP system priority LACP port priority interface MAC address system ID port number hot-standby link identification number interface bandwidth Correct Answer: ABDE Section: (none) Explanation Explanation/Reference: QUESTION 30 Select and Place: www.Section: (none) Explanation Explanation/Reference: Section: Layer 2 Technologies Explanation/Reference:. increasing operational efficiency. E. the data plane and switch fabric with capacity of 720 Gbps of supervisor engine in each chassis are active at the same time on both chassis.Download A+ VCE (latest) free Open VCE Exams . ______________________________________________________________________________ QUESTION 29 Which four LACP components are used to determine which hot-standby links become active after an interface failure within an EtherChannel bundle? (Choose four.VCE Exam Simulator .IT Certifications . combining for an active 1400-Gbps switching capacity per VSS. boosting nonstop communications.4 Tbps. and scaling system bandwidth capacity to 1.com . F. G.VCE to PDF Converter .

VCE Exam Simulator .VCE Online .IT Certifications .Download A+ VCE (latest) free Open VCE Exams .vceplus.VCE to PDF Converter .Correct Answer: Section: (none) Explanation Explanation/Reference: www.com .