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

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

com/c/en/us/td/docs/switches/lan/catalyst3550/software/release/12-1_13_ea1/configuration/guide/3550scg/swethchl.VCE Online . for Layer 2 EtherChannels.html QUESTION 5 Refer to the exhibit. trunking state and VLAN numbers. 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. For example: • An interface in the desirable mode can form an EtherChannel with another interface that is in the desirable or auto mode. Reference: http://www. Interfaces can form an EtherChannel when they are in different PAgP modes as long as the modes are compatible. 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.vceplus. • An interface in the auto mode can form an EtherChannel with another interface in the desirable mode.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.VCE Exam Simulator .Download A+ VCE (latest) free Open VCE Exams .cisco.IT Certifications .com .VCE to PDF Converter . www.

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

If a VLAN is a source. Reference: http://www.VLAN monitoring and VLAN filtering are mutually exclusive.cisco.VCE Exam Simulator .VCE to PDF Converter .IT Certifications .html#wp3 875419997 QUESTION 6 Refer to the exhibit.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. D. C. F. A network engineer wants to analyze all incoming and outgoing packets for an interface that is connected to an access switch.vceplus. B.VCE Online . a VLAN cannot become a source.Download A+ VCE (latest) free Open VCE Exams .com . E. If VLAN filtering is configured. 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.) A. Which three items must be configured to mirror traffic to a packet sniffer that is connected to the distribution switch? (Choose three.

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

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

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

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

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

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

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

The link type is automatically derived from the duplex mode of a port. These ports are allowed to immediately enter the forwarding state rather than passively wait for the network to converge. B. * Backup port . C.point links.vceplus. RSTP bridge port roles: * Root port .1D STP and PortFast have been configured by default on all newly implemented Cisco Catalyst switches. * Disabled port . The alternative port moves to the forwarding state if there is a failure on the designated port for the segment. IEEE 802. 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.A backup/redundant path to a segment where another bridge port already connects.Download A+ VCE (latest) free Open VCE Exams . D. a network administrator can manually disable a port Reference: http://www. RSTP has been enabled per interface and not globally. The switch does not have the processing power to ensure rapid transition for all ports.com . To have two links to the same collision domain.VCE Online .IT Certifications . A port that operates in full-duplex is assumed to be point-to-point.VCE Exam Simulator . not on trunk links.VCE to PDF Converter . This path is different than using the root port.A forwarding port that is the closest to the root bridge in terms of path cost * Designated port .cisco. After testing. 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. The port roles have been adjusted based on the interface bandwidth and timers of the new Cisco Catalyst switches. STP is unable to achieve rapid transition for trunk links. The backup port applies only when a single switch has two links to the same segment (collision domain). the switch must be attached to a hub. C.com/c/en/us/support/docs/lan-switching/spanning-tree. The new switches are using RSTP instead of legacy IEEE 802.1D STP. it has been determined that several ports are not transitioning as they should. while a half-duplex port is considered as a www. What is the reason for this? A.html QUESTION 17 An administrator recently configured all ports for rapid transition using PortFast. The administrator has defined the switch as the root in the STP domain. The STP root bridge selection is forcing key ports to remain in non-rapid transitioning mode.A forwarding port for every LAN segment * Alternate port .A. B.Not strictly part of STP.protocol/24062-146.A best alternate path to the root bridge. D.

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

VCE Exam Simulator . such as the detection of a loopback. C.com/c/en/us/td/docs/switches/datacenter/nexus5000/sw/configuration/guide/cli/ CLIConfigurationGuide/MACAddress. or a broadcast storm.html#wp1126206 QUESTION 20 While working in the core network building. a technician accidently bumps the fiber connection between two core switches and damages one of the pairs of fiber.cisco.VCE Online . What solution allows the network switch to automatically recover from such an issue? A.IT Certifications . assess. By default. UDLD failure. the link was placed into a non-forwarding state due to a fault with UDLD. As designed. 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. The idea behind requiring administrative action is so that a human engineer can intercede. E.vceplus.Download A+ VCE (latest) free Open VCE Exams .com . 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. the link did not recover. and (ideally) correct www.VCE to PDF Converter . D. manual intervention by an administrator is necessary to restore the interface to working order. this can be done by issuing shutdown followed by no shutdown on the interface. B. After the damaged cable was replaced.To configure the aging time for all MAC addresses.

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

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

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

C.2/31sg/configuration/guide/conf/channel. B. UDLD port is configured in aggressive mode.html QUESTION 25 What is the function of NSF? A. UDLD timers are inconsistent. any configuration that you apply to the physical interfaces affects only the interface where you apply the configuration. you cannot configure Storm Control on some of the members of an EtherChannel.VCE Exam Simulator . Therefore.VCE to PDF Converter . 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.Download A+ VCE (latest) free Open VCE Exams . 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. any configuration that you apply to the port-channel interface affects the EtherChannel. D.over-blog. C.IT Certifications . and not at the physical interface level. 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. a Network Administrator noticed that one port stops receiving UDLD packets.4 Tbps. combining for an active 1400-Gbps switching capacity per VSS.cisco. B.html QUESTION 26 After UDLD is implemented.Explanation: After you configure an EtherChannel. Normal UDLD operations that prevent traffic loops.com/article-cisco-catalyst-6500-series-vss-1440.124536783.vceplus. boosting nonstop communications. UDLD is enabled globally. D. Switches would operate as a single logical virtual switch called a virtual switching system 1440 (VSS1440).com . you should configure Storm Control at the EtherChannel Interface level. Reference: http://ciscorouterswitch. Only one of the virtual switch members has the active control plane. those ports will be dropped from the EtherChannel interface (put in suspended state).com/c/en/us/td/docs/switches/lan/catalyst4500/12.VCE Online . increasing operational efficiency. Reference: http://www. Storm Control is an exception to this rule. In a VSS. For example. Which option describes what causes the port to go into the errdisable state? A. and scaling system bandwidth capacity to 1. This port continues to reestablish until after eight failed retries. If you configure Storm Control on only some of the ports. www. VSS formed by two Cisco Catalyst 6500 Series Switches with the Virtual Switching Supervisor 720-10GE. Storm Control must be configured on all or none of the ports.

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

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

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

If extended VLANs are configured.cisco. the key associated with the password is saved in hexadecimal format in the running configuration. When you enter the secret keyword. The VTP server must be reloaded. B.VCE to PDF Converter . QUESTION 37 After configuring new data VLANs 1020 through 1030 on the VTP server. VTP must be stopped and restarted on the server. The VTP version number must be set to version 3. you can directly configure the password secret key. 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. You must reenter the password if you enter a takeover command in the domain.html#wp1316856 QUESTION 38 www. D. C.A. Verify connected trunk ports. Reference: http://www. Instead. D.com/en/US/docs/switches/lan/catalyst3560/software/release/12. Restart the VTP process on the new switch. it takes up to 4 hours propagate. E. The first thing that should be done is to verify that the trunk ports are connected and up. a network engineer notices that none of the VTP clients are receiving the updates. the secret key from the password string is saved in the VLAN database file. Another switch in the domain has a higher revision number than the server.vceplus. Support for extended range VLAN (VLANs 1006 to 4094) database propagation.VCE Online . B.2_52_se/config uration/guide/swvtp. you cannot convert from VTP version 3 to version 1 or 2. Reload the VTP server. VTP versions 1 and 2 propagate only VLANs 1 to 1005.IT Certifications .Download A+ VCE (latest) free Open VCE Exams . C. After each update to the VTP server. What is the problem? A. Reload the new switch. but it does not appear in plain text in the configuration. When hidden.VCE Exam Simulator .com . 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.

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

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

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

Example configuration: Switch-C# configure terminal Switch-C(config)# interface range fa0/3 . D.VCE Online .VCE to PDF Converter .VCE Exam Simulator . the application server team has indicated that they must not have the standard 30 second delay before their switchport enters a forwarding state.vceplus. they require the switchport to enter a forwarding state immediately.com/library/content. 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. enable the STP PortFast feature. So if the port is to be a part of the loop.IT Certifications .QUESTION 44 For client server failover purposes.informit. E.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. B. the port eventually transitions into STP blocking mode. The port still participates in STP. B. D. E. 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. C.24 Switch-C(config-if-range)# spnning-tree portfast Reference: http://www.Download A+ VCE (latest) free Open VCE Exams . Which spanning-tree feature satisfies this requirement? A. PortFast immediately transitions the port into STP forwarding mode upon linkup. For their disaster recovery feature to operate successfully.com . C.

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

C. D. on the other hand. 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. 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. uses a www.1w RST algorithm to multiple spanning trees.VCE Exam Simulator . VLANs. MST. B. 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. If the switch hears a VTP advertisement it will automatically learn the VTP domain name.IT Certifications .com .net/configuring-cisco-vtp/ QUESTION 47 A network engineer is setting up a new switched network.Download A+ VCE (latest) free Open VCE Exams .sent out every 300 seconds and every time a change occurs on the VLAN database. The network is expected to grow and add many new VLANs in the future.Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: By default.VCE Online .dionicio. E. Which Spanning Tree Protocol should be used to reduce switch resources and managerial burdens that are associated with multiple spanning-tree instances? A. and the configuration revision number.VCE to PDF Converter .vceplus. Summary advertisements .

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

D. C. the switch SDM templates prioritize system resources to optimize support for certain features. Reference: http://www. the switch SDM templates prioritize system resources to optimize support for certain features.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.com/en/US/docs/switches/lan/catalyst3750x_3560x/software/release/12.VCE Exam Simulator .IT Certifications . and use access template to obtain maximum ACL usage.2_55_s e/configuration/guide/swsdm.cisco. for example.com/en/US/docs/switches/lan/catalyst3560/software/release/12.2_55_se/config uration/guide/swsdm. typically required for a router or aggregator in the center of a network.vceplus.pdf QUESTION 49 Which SDM template disables routing and supports the maximum number of unicast MAC addresses? A. B.VCE to PDF Converter . 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. It would typically be selected for a Layer 2 switch.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. use the default template to balance resources. 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.Download A+ VCE (latest) free Open VCE Exams . Reference: http://www. Default--The default template gives balance to all functions.com . depending on how the switch is used in the network.cisco. To allocate hardware resources for different usages. VLANs--The VLAN template disables routing and supports the maximum number of unicast MAC addresses. Routing--The routing template maximizes system resources for Ipv4 unicast routing.VCE Online . You can select a template to provide maximum system usage for some functions.

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. D. B.pdf QUESTION 51 In a Cisco switch.com . Reference: http://www. typically required for a router or aggregator in the center of a network.com/en/US/docs/switches/lan/catalyst3560/software/release/12. D. the switch SDM templates prioritize system resources to optimize support for certain features. 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.IT Certifications . C. Default--The default template gives balance to all functions.Download A+ VCE (latest) free Open VCE Exams .2_55_se/config uration/guide/swsdm.VCE Exam Simulator .cisco. C.vceplus. perform this task: www.VCE to PDF Converter . VLANs--The VLAN template disables routing and supports the maximum number of unicast MAC addresses (clients). 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.A. It would typically be selected for a Layer 2 switch. Routing--The routing template maximizes system resources for Ipv4 unicast routing. B.VCE Online . what is the default period of time after which a MAC address ages out and is discarded? A.

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

vceplus.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00806cd87b. B.com/en/US/docs/ios/lanswitch/command/reference/lsw_m1. 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.Usage Guidelines MAC-move notification generates a syslog message whenever a MAC address or host moves between different switch ports.cisco.VCE to PDF Converter . Reference: http://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.html QUESTION 53 Which option is a possible cause for an errdisabled interface? A.com .shtml www. C.VCE Online .IT Certifications . D.cisco.VCE Exam Simulator .Download A+ VCE (latest) free Open VCE Exams .

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.-------------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.Download A+ VCE (latest) free Open VCE Exams .VCE Online . C. In this case. The errdisable recovery command allows you to choose the type of errors that automatically reenable the ports after a specified amount of time.IT Certifications . the ports are still disabled if you have not configured errdisable recovery on the switch.VCE Exam Simulator . cat6knative#show errdisable recovery ErrDisable Reason Timer Status ----------------. The show errdisable recovery command shows the default error-disable recovery state for all the possible conditions. you must reenable the ports manually. Issue the shutdown command and then the no shutdown interface mode command on the associated interface in order to manually reenable the ports.com .vceplus. D.QUESTION 54 What is the default value for the errdisable recovery interval in a Cisco switch? A. B.VCE to PDF Converter .

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

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

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

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

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

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

1Q QUESTION 65 www. B. html QUESTION 64 What is the size of the VLAN field inside an 802.094 VLANs Reference: http://en.com .1q frame? A. C. If converting from VTP version 3 to VTP version 2. Extended-range VLANs are supported only in VTP version 3. The hexadecimal values of 0x000 and 0xFFF are reserved.Download A+ VCE (latest) free Open VCE Exams . transparent client server Extended VLANs are only supported in version 3 and not in versions 1 or 2. D.http://www. D.com/en/US/docs/ios/12_2/configfun/command/reference/frf015.wikipedia.2SX/configuration/guide/vtp.cisco.vceplus. Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: VTP version 1 and version 2 support VLANs 1 to 1000 only. VLANs in the range 1006 to 4094 are removed from VTP control. 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. B.org/wiki/IEEE_802.VCE to PDF Converter .VCE Exam Simulator .VCE Online .com/en/US/docs/switches/lan/catalyst6500/ios/12.cisco. Reference: http://www. C.IT Certifications . All other values may be used as VLAN identifiers. allowing up to 4. when a switch is configured to use VTP versions 1 or 2? A.html#wp10175 QUESTION 63 Which VTP mode is needed to configure an extended VLAN.

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.IT Certifications .VCE Online . QUESTION 66 Refer to the exhibit. the port should be configured as a trunk port. Which option shows the expected result if a show vlan command is issued? www.com .VCE Exam Simulator .vceplus. B. If more than one VLAN is needed. D.VCE to PDF Converter .What is the maximum number of VLANs that can be assigned to an access switchport without a voice VLAN? A. C.Download A+ VCE (latest) free Open VCE Exams .

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

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

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

Correct Answer: C Section: Layer 2 Technologies Explanation www. Enable VTP pruning on the VTP server.VCE Exam Simulator . 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. Consider that this is a multivendor environment.1Q is supported by multiple vendors since ISL is a Cisco proprietary protocol.VCE to PDF Converter . Which Cisco IOS switching feature can be used to achieve the task? A. only 802.vceplus. There are 2 different methods for trunking.com . D. C.IT Certifications .1Q and ISL. D. Of these.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. 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. 802. The VTP domain names do match and they are both VTP servers so there are no issues there. C. B. Use trunk pruning vlan 1. Manually prune default VLAN with switchport trunk allowed vlans remove. QUESTION 74 Which action allows a network engineer to limit a default VLAN from being propagated across all trunks? A. B.Download A+ VCE (latest) free Open VCE Exams . Upgrade to VTP version 3 for advanced feature set support.VCE Online . 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.

Reference: http://www. D. The "trunk pruning vlan 1" option is not a valid command.html QUESTION 76 Refer to the exhibit.1q Q-in-Q encapsulation? A.1_13_ea1/confi guration/guide/swtunnel. C.com .Download A+ VCE (latest) free Open VCE Exams .IT Certifications . VLAN 1 is not VTP pruning eligible so it cannot be done via VTP pruning.VCE to PDF Converter . 4-bytes except the native VLAN 8-bytes except the native VLAN 4-bytes including native VLAN 8-bytes including native VLAN www.vceplus.Explanation/Reference: Explanation: Manaully pruning the default VLAN (1) can only be done with the "switchport trunk allowed vlans remove" command.VCE Online . How many bytes are added to each frame as a result of the configuration? A. Because the 802. 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.VCE Exam Simulator . B. 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.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. QUESTION 75 What is required for a LAN switch to support 802. D. C. B.cisco.

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

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

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

IT Certifications . 4. we see that fa 0/13. This is similar to the on state for PAgP. and on.vceplus. To increase bandwidth. fa0/14. 1.Correct Answer: B Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: PAgP modes are off. which is only a PAgP mode. The formation of a channel is desired. 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 .VCE Online . Only the combinations auto-desirable. and fa0/15 are all in Port Channel 12. Passive: The switch does not initiate the channel but does understand inbound LACP packets. the switch neither sends the LACP packet nor processes any inbound LACP packet. The formation of a channel is desired and initiated. In this example. auto. Active: We can form an aggregate link and initiate the negotiation. as shown here: www. desirable. however. We do not send or understand the LACP packet. auto: PAgP is running passively. The channel is forced to remain down. 3. 2.VCE to PDF Converter . eventually to form the aggregation channel with the peer. This is similar to the desirable mode of PAgP. This is similar to the off state for PAgP. off: PAgP will not run. desirable: PAgP is running actively.Download A+ VCE (latest) free Open VCE Exams . which is operating in desirable mode. The channel is forced to come up. This is similar to the auto mode in PAgP. Users of PC-1 experience slow connection when a webpage is requested from the server. The peer (in active state) initiates negotiation (when it sends out an LACP packet) which we receive and answer. the network engineer configured an EtherChannel on interfaces Fa1/0 and Fa0/1 of the server farm switch.In other words. it is not initiated. on: PAgP will not run. QUESTION 80 Refer to the exhibit. Off: The link aggregation is not formed. The link aggregate is formed if the other end runs in LACP active or passive mode. desirable.desirable.VCE Exam Simulator .com . and on-on will allow a channel to be formed.

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

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

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

1d to communicate.1d to communicate. but when a RSTP switch receives a 802.VCE Exam Simulator .1d BPDU.1d BPDU and eventually the two switches run 802.html QUESTION 85 When two MST instances (MST 1 and MST 2) are created on a switch. but when a RSTP switch receives an 802. it does not respond with a 802.1d BPDU and eventually the two switches run 802. and RSTP BPDUs are sent.1d BPDU.1d BPDU. the migrate-delay timer is started (specifies the minimum time during which RSTP BPDUs are sent). but when a RSTP switch receives a 802.1d BPDU. While this timer is active.1d BPDU and eventually the two switches run 802. which is a standards based protocol. When a port is initialized.cisco. If the switch receives an 802. The protocol used for this port channel shows as LACP. D.com .1D BPDUs. D.1d to communicate.IT Certifications .1d does not understand RSTP BPDUs because they are different versions.1d understands RSTP BPDUs because they are the same version. as opposed to PagP. 1 2 3 4 Correct Answer: C Section: Layer 2 Technologies Explanation www. Correct Answer: A Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: For backward compatibility with 802.vceplus. 802.VCE to PDF Converter . However. it responds with an 802. it does not respond with a 802. the switch processes all BPDUs received on that port and ignores the protocol type. RSTP selectively sends 802. 802.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12. if the RSTP switch is using 802.1D configuration BPDUs and TCN BPDUs on a per-port basis.1D switches.Explanation: These three ports show that they are in Port Channel 1. B. which is Cisco proprietary. Reference: http://www. it assumes that it is connected to an 802.1D switch and starts using only 802. 802.1d BPDU. C.1d understands RSTP BPDUs because they are the same version. it responds with a 802.2SX/configuration/guide/book/spantree. QUESTION 84 What happens on a Cisco switch that runs Cisco IOS when an RSTP-configured switch receives 802.VCE Online . 802. C. it restarts the timer and starts using RSTP BPDUs on that port.1d BPDU? A. B.Download A+ VCE (latest) free Open VCE Exams . but when a RSTP switch receives a 802.1D BPDUs on a port and receives an RSTP BPDU after the timer has expired. and the (SU) means they are in use and operating at layer 2.1D BPDU after the port migration-delay timer has expired.1d does not understand RSTP BPDUs because they are different versions. what is the total number of spanning-tree instances running on the switch? A.

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

Modify the spanning-tree port-priority on SW1 f1/1 to 16 and f1/0 to 0.vceplus.f1/0 and f1/1 have the same end-to-end path cost to the designated bridge. You can assign higher priority values to LAN ports www. 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.IT Certifications . C. D.VCE Exam Simulator .com . STP considers port priority when selecting a LAN port to put into the forwarding state. Modify the spanning-tree port-priority on SW2 f1/1 to 16 and f1/0 to 0.VCE Online . Correct Answer: C Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: If a loop occurs.Download A+ VCE (latest) free Open VCE Exams . Modify the spanning-tree port-priority on SW1 f1/1 to 0 and f1/0 to 16. B. Modify the spanning-tree port-priority on SW2 f1/1 to 0 and f1/0 to 16.VCE to PDF Converter .

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

D. The switch priority value is zero.com/en/US/docs/switches/lan/catalyst2950/software/release/12. interface f0/15 www.html#wp1020666 QUESTION 88 Refer to the exhibit.com .vceplus. the more likely the switch will be chosen as the root switch.Download A+ VCE (latest) free Open VCE Exams . All ports are members of VLAN 10. which option will be the new root port for VLAN 10? A. The lower the number.IT Certifications . it has the lowest priority value for VLAN 1. the range is 0 to 61440 in increments of 4096.VCE Exam Simulator . Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: For priority.VCE Online . Considering the default cost of upstream bridges to the root bridge is equal.VCE to PDF Converter .cisco. Reference: http://www. the default is 32768.1_9_ea1/config uration/guide/swstp. interface f0/14 C. interface f0/13 B.

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

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

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

VCE Exam Simulator .IT Certifications .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.com . The virtual switch members reload. Correct Answer: D Section: Layer 2 Technologies Explanation Explanation/Reference: Explanation: Q. Both virtual switch members cease to forward traffic.html www.VCE to PDF Converter . B. The VSS transitions to the dual active recovery mode.VCE Online .Download A+ VCE (latest) free Open VCE Exams . Reference: http://www. If for some rare reason all VSL connections are lost between the virtual switch members leaving both the virtual switch members up. the VSS will transition to the dual active recovery mode. 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. What happens if all VSL connections between the virtual switch members are lost? A. Reference: http://www. C.2 (33)SXI) In the dual active recovery mode. and only the new active virtual switch continues to forward traffic. D. and both virtual switch members continue to forward traffic independently. The VSS transitions to the dual active recovery mode. all interfaces except the VSL interfaces are in an operationally shut down state in the formerly active virtual switch member.vceplus.com/en/US/prod/collateral/switches/ps5718/ps9336/prod_qas0900aecd806ed74 b.com/en/US/prod/collateral/switches/ps5718/ps9336/prod_qas0900aecd806ed74 b.cisco.html QUESTION 94 Which statement describes what happens if all VSL connections between the virtual switch members are lost? A. 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.cisco. The new active virtual switch continues to forward traffic on all links.

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

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

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

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

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

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

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

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

The IP source binding table has bindings that are learned by DHCP snooping or are manually configured (static IP source bindings). Which option is the cause of the problem? A. its associated MAC address. the switch blocks all IP traffic received on the interface.com/c/en/us/td/docs/switches/lan/catalyst3550/software/release/12. You can enable IP source guard when DHCP snooping is enabled on an untrusted interface.Download A+ VCE (latest) free Open VCE Exams . The configured SVIs on the switch have been removed for the associated interfaces. Layer 2 interfaces by filtering traffic based on the DHCP snooping binding database and on manually configured IP source bindings.VCE Exam Simulator . Correct Answer: B Section: Infrastructure Security Explanation Explanation/Reference: Explanation: IP source guard is a security feature that restricts IP traffic on nonrouted. The interfaces are configured as Layer 3 using the no switchport command.cisco. and its associated VLAN number. using the ip verify source port. You can configure IP source guard with source IP address filtering or with source IP and MAC address filtering.Section: Infrastructure Security Explanation Explanation/Reference: Explanation: When you enable both IP Source Guard and Port Security.html#wp1069615 QUESTION 104 A switch is added into the production network to increase port capacity. or the client is not assigned an IP address. except for DHCP packets allowed by DHCP snooping. No VLANs exist on the switch and/or the switch is configured in VTP transparent mode. but is unable to configure ip verify source under several of the interfaces. The switch is configured for sdm prefer routing as the switched database management template. The switch uses the IP source binding table only when IP source guard is enabled. C. The port ACL allows only IP traffic with a source IP address in the IP source binding table and denies all other traffic. there are two caveats: The DHCP server must support option 82. IP source guard is supported only on Layer 2 ports. E.IT Certifications .VCE to PDF Converter . The MAC address of the DHCP client is learned as a secure address only when the switch receives non-DHCP data traffic.com/c/en/us/td/docs/switches/lan/catalyst3550/software/release/12.2_25_see/configuration/guide/3550SCG/ swdhcp82. Reference: http://www. B. An entry in this table has an IP address.cisco. A port access control list (ACL) is applied to the interface.security interface configuration command. The MAC address in the DHCP packet is not learned as a secure address.2_25_see/configuration/guide/3550SCG/ swdhcp82.com . After IP source guard is enabled on an interface.vceplus. The local DHCP server is disabled prior to enabling IP Source Guard. Reference: http://www.html#wp1069615 www. You can use IP source guard to prevent traffic attacks caused when a host tries to use the IP address of its neighbor. D. including access and trunk ports.VCE Online . A network engineer is configuring the switch for DHCP snooping and IP Source Guard.

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

If a port is in per-VLAN errdisable mode.2_25_see/configuration/guide/3550SCG/swtrafc. E.VCE Online . the network team has been overwhelmed with port reset requests. They decide to configure the network to automate the process of re-enabling user ports. C.com/c/en/us/td/docs/switches/lan/catalyst4500/12. Reference: http://www.cisco.Download A+ VCE (latest) free Open VCE Exams .html QUESTION 106 After port security is deployed throughout an enterprise campus.com/c/en/us/td/docs/switches/lan/ catalyst3550/software/release/12.) A.cisco. 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.pdf QUESTION 107 The network monitoring application alerts a network engineer of a client PC that is acting as a rogue DHCP server. Which two commands help trace this PC when the MAC address is known? (Choose two.com . D.In this case. B. D. E.VCE Exam Simulator . This is the default mode.VCE to PDF Converter . C. 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.IT Certifications . Which command accomplishes this task? A.vceplus. 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.2/53SG/configuration/ config/port_sec. 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. Reference: http://www. B. you can also use clear errdisable interface name vlan range command to re-enable the VLAN on the port. the broadcast keyword was used so only broadcast traffic is limited.

7b00.html QUESTION 109 Which command globally enables AAA on a device? www.VCE Online . multicast.cisco. a network engineer discovered an unusually high level of broadcast traffic coming from one of the switch interfaces. unicast. B. C.7b00. By default.0de0.-------------------0010.Download A+ VCE (latest) free Open VCE Exams .1_22ea/SCG/scg/swtrafc.e289 Dynamic 1 FastEthernet0/1 0010.vceplus. storm control is disabled. D. You can also set the switch to shut down the port when the rising threshold is reached. Which option decreases consumption of bandwidth used by broadcast traffic? A. E. or unicast storm on a port.com .1540 Dynamic 2 FastEthernet0/5 0010. mistakes in network configuration. 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.VCE to PDF Converter .1545 Dynamic 2 FastEthernet0/5 QUESTION 108 While troubleshooting a network outage.IT Certifications .com/c/en/us/td/docs/switches/lan/catalyst2950/software/release/12.-----------. Reference: http://www.VCE Exam Simulator . A LAN storm occurs when packets flood the LAN. or users issuing a denial-of-service attack can cause a storm. Errors in the protocol-stack implementation.---.Explanation: These two commands will show the MAC address table. including the switch port that the particular host is using. Storm control uses rising and falling thresholds to block and then restore the forwarding of broadcast. or multicast packets. creating excessive traffic and degrading network performance. 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 ------------------. Storm control is configured for the switch as a whole but operates on a perport basis.

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

ht ml QUESTION 111 Which authentication service is needed to configure 802. Network--Applies to network connections. The Remote Authentication Dial-In User Service (RADIUS) security system with Extensible Authentication Protocol (EAP) extensions is the only supported authentication server. This can include a PPP. the authentication service is transparent to the client. or ARAP connection.1x? A.IT Certifications . Reverse Access--Applies to reverse Telnet sessions. When you create a named method list. associated with a specific privilege level. Reference: http://www. Reference: http://www.Download A+ VCE (latest) free Open VCE Exams . A. SLIP.vceplus.VCE to PDF Converter .com .1x.VCE Online .com/c/en/us/td/docs/switches/lan/catalyst2940/software/release/ 12-1_19_ea1/configuration/guide/2940scg_1/sw8021x. 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. 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.com/c/en/us/td/docs/ios/12_2/security/configuration/guide/fsecur_c/scfathor.including global configuration commands. Because the switch acts as the proxy.cisco.VCE Exam Simulator . C. EXEC--Applies to the attributes associated with a user EXEC terminal session.pdf QUESTION 112 Refer to the exhibit.cisco. you are defining a particular list of authorization methods for the indicated authorization type. www. the authentication server--performs the actual authentication of the client.

VCE to PDF Converter .Download A+ VCE (latest) free Open VCE Exams . B.Which login credentials are required when connecting to the console port in this output? A.com .VCE Exam Simulator . 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. None means no authentication.vceplus. C.VCE Online . www. QUESTION 113 Refer to the exhibit. meaning that credentials are not required and all sessions are allowed access immediately. D.IT Certifications .

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

com/c/en/us/support/docs/switches/catalyst-3750. 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.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.pdf QUESTION 115 Which switch feature determines validity based on IP-to-MAC address bindings that are stored in a trusted database? A. The DHCP snooping feature performs the following activities: Validates DHCP messages received from untrusted sources and filters out invalid messages. which contains information about untrusted hosts with leased IP addresses.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12.IT Certifications . Utilizes the DHCP snooping binding database to validate subsequent requests from untrusted hosts. Reference: http://www. the DHCP snooping binding database. Reference: http://www. C.2SX/configuration/guide/book/snoodhcp. If the ARP packet is received on a trusted interface. This database is built by DHCP snooping if DHCP snooping is enabled on the VLANs and on the switch.VCE to PDF Converter . A.vceplus.html QUESTION 116 Which command is needed to enable DHCP snooping if a switchport is connected to a DHCP server? A. the switch forwards the packet only if it is valid.Download A+ VCE (latest) free Open VCE Exams . ip dhcp trust www. the switch forwards the packet without any checks.VCE Online . B.series-switches/72846-layer2-secftrs-catl3fixed. On untrusted interfaces.VCE Exam Simulator . Builds and maintains the DHCP snooping binding database. D.cisco. Rate-limits DHCP traffic from trusted and untrusted sources. ip dhcp snooping trust B.cisco. ip dhcp snooping C.com .

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

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

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

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

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

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

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120.vceplus.VCE Exam Simulator .39.46 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 .IT Certifications .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 .VCE Online .com .

vceplus.120.IT Certifications .Download A+ VCE (latest) free Open VCE Exams .VCE to PDF Converter .com . standby group B.0.VCE Online .40.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 172.0. standby priority C.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. backup interface www.VCE Exam Simulator .0 0.

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

vceplus.cisco. This VSS routing instance fulfills this first-hop role without the need for a dedicated protocol.VCE Online .html#wp1044327 QUESTION 127 Which option is a benefit of using VSS? A.Download A+ VCE (latest) free Open VCE Exams .com .VCE to PDF Converter . D. The VSS IP route is highly available due to MEC and the resiliency of the VSS system. The VSS system creates a single logical router at Layer 3.IT Certifications . VSS eliminates the need for FHRP at the aggregation layer of the data center.com/en/US/docs/switches/lan/catalyst3550/software/release/12. C. 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. B. FHRPs allow two (or more) distinct routers to share a common IP address providing a redundant Layer-3 default gateway for end nodes.1_19_ea1/confi guration/guide/swhsrp.VCE Exam Simulator .Reference: http://www. Reference: www.

B.IT Certifications . D.VCE Online .com/en/US/docs/solutions/Enterprise/Data_Center/vssdc_integrate. C.com .vceplus.cisco.VCE to PDF Converter . 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.html QUESTION 128 Which First Hop Redundancy Protocol is an IEEE Standard? A.http://www.Download A+ VCE (latest) free Open VCE Exams .VCE Exam Simulator .

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B.com .VCE to PDF Converter . 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.com/en/US/docs/switches/lan/catalyst3550/software/release/12. Reference: http://www. B. For each interface configured for hot standby.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.vceplus. When a tracked interface fails.VCE Online . If an interface is not tracked.Reference: http://cciethebeginning.IT Certifications .1_19_ea1/confi guration/guide/swhsrp. C.Download A+ VCE (latest) free Open VCE Exams .cisco. you can configure a separate list of interfaces to be tracked.com/2008/08/23/router-high-availability-protocol.html QUESTION 130 What is the maximum number of virtual MAC addresses that GLBP allows per group? A.wordpress. C.VCE Exam Simulator . its state changes do not affect the hot standby priority of the configured device. D. 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. D.

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

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

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

issue the show interface command to verify the MAC address of the interface.shtml#dr QUESTION 136 Ferris Plastics.cisco.0. then some other device with a MAC address reports this error message. then it indicates that this router is receiving its own hello packets sent. · DSW1 -primary device for VLAN 101 VLAN 102 and VLAN 105 · DSW2 . www. Reference: http://www.0. unless GigabitEthernet1/0/1 on backup device has also failed.0.255. Verify the spanning-tree topology and check if there is any layer2 loop. C.VCE Exam Simulator . If the MAC address of the interface is the same as the one reported in the error message.VCE to PDF Converter .IT Certifications . B. Currently all interfaces are up. Note: GLBP members communicate between each other through hello messages sent every 3 seconds to the multicast address 224.102 and User Datagram Protocol (UDP) port 3222 (source and destination).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.0 15.255. Using the running configurations and show commands. distribution and core switches) that provides LAN connectivity from user PCs to corporate servers. you have been asked to investigate and respond to the following question. permit the Multicast address by permit 224.VCE Online . 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. is a medium sized company. Inc.Download A+ VCE (latest) free Open VCE Exams . In order to resolve this issue.com . with an enterprise network (access.com/en/US/products/hw/switches/ps708/products_configuration_example0918 6a00807d2520. When configuring the multicast boundary command. D. The distribution switches are configured to use HSRP to provide a high availability solution. Troubleshooting has identified several issues.255. %GLBP-4-DUPADDR: Duplicate address The error message indicates a possible layer2 loop and STP configuration issues.0. If the interface MAC address is different from the one reported in the error message.vceplus.A.

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

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

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

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

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

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

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

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

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

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

IT Certifications .interface goes down for a priority value of 90.VCE Exam Simulator .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. www.VCE to PDF Converter .VCE Online .vceplus.com . 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.

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

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

www. They have questions about how these two devices will perform in the event of a device failure.VCE Online . we see that R1 is the active standby router for the Ethernet 0/0 link.vceplus.VCE to PDF Converter . 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.Explanation Explanation/Reference: Explanation: Based on the following output.IT Certifications . so all outgoing traffic will be forwarded to R1.Download A+ VCE (latest) free Open VCE Exams .com .VCE Exam Simulator .

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

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B. 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.vceplus. E.Download A+ VCE (latest) free Open VCE Exams .Refer to the exhibit. The interface will have the priority decremented by 40 for HSRP group 1.VCE Exam Simulator .VCE Online . D. C.VCE to PDF Converter .com .IT Certifications . If router R1 interface Etherne0/0 goes down and recovers.

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

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

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VCE Exam Simulator .vceplus.Download A+ VCE (latest) free Open VCE Exams .IT Certifications . B. E.com .VCE to PDF Converter . D.What issue is causing Router R1 and R2 to both be displayed as the HSRP active router for group 2? A. C.VCE Online . 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.

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

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

Download A+ VCE (latest) free Open VCE Exams . www.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.VCE Online . They have questions about how these two devices will perform in the event of a device failure.com .VCE to PDF Converter .vceplus.IT Certifications .VCE Exam Simulator .

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D. B. C.0c07.VCE to PDF Converter .com .What is the virtual mac-address of HSRP group 1? A.0000.vceplus.ac02 0000.0c07.0000. E.0000.ac02 4000.Download A+ VCE (latest) free Open VCE Exams .0010 0000.0c07.VCE Online .IT Certifications .VCE Exam Simulator . F. 0000.ac01 4000.ac01 4000.0010 www.

VCE Online .VCE Exam Simulator .Download A+ VCE (latest) free Open VCE Exams .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 4000.0010 as shown below: www.0000.VCE to PDF Converter .com .IT Certifications .vceplus.

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

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

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

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

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

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

IT Certifications . B. C. C. VRRP topology contains a master router. D.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. VRRP and GLBP. 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. The maximum number of Virtual MAC addresses that GLBP allows per group is 4 www.com . B.VCE to PDF Converter .vceplus.dat ? ? ? Correct Answer: A Section: (none) Explanation Explanation/Reference: ——————————————QUESTION 10 Question on HSRP.VCE Exam Simulator .VCE Online . D. Which options are correct? (choose two) A. vlan. a standby router and multiple liteners B.Download A+ VCE (latest) free Open VCE Exams .

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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B. Too few ports in Switch2 C.com .VCE Exam Simulator .vceplus.) ———————————————————————————————————– 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.VCE to PDF Converter . the device secures MAC addresses in the same manner as dynamic address learning. D.VCE Online . D. C.IT Certifications . These addresses can be made persistent through a reboot by copying the running-configuration to the startup-configuration. copy run start. Too many ports in Switch1 D.B. 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. 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. 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. C.Download A+ VCE (latest) free Open VCE Exams . B.

B. An interface on the primary link has a problem and the admin wants to move the traffic to the other link.VCE to PDF Converter .com . What action will accomplish this task? A.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.IT Certifications . C. 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. D.VCE Exam Simulator . What action must he perform? A.VCE Online . 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. D.Download A+ VCE (latest) free Open VCE Exams . C. B.vceplus.

vceplus. E.IT Certifications . C. D.VCE Online .VCE Exam Simulator . 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. D. PortFast ? ? ? Correct Answer: A Section: (none) Explanation Explanation/Reference: ——————————————QUESTION 23 What would happen if we delete VLAN that exit on switchport? A.com . B. D.Download A+ VCE (latest) free Open VCE Exams . B. B. C.A.VCE to PDF Converter . VTP version 3 ? ? ? Correct Answer: A Section: (none) Explanation Explanation/Reference: QUESTION 22 Question about the voice vlan A.

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

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

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

E.VSS is network system virtualization technology that pools multiple Cisco Catalyst 6500 Series Switches into one virtual switch. boosting nonstop communications. C. B.4 Tbps.VCE Online . 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. 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.VCE Exam Simulator . G. ______________________________________________________________________________ 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.com . 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.Section: (none) Explanation Explanation/Reference: Section: Layer 2 Technologies Explanation/Reference:.VCE to PDF Converter . In a VSS.) A. combining for an active 1400-Gbps switching capacity per VSS. D.IT Certifications . Switches would operate as a single logical virtual switch called a virtual switching system 1440 (VSS1440). VSS formed by two Cisco Catalyst 6500 Series Switches with the Virtual Switching Supervisor 720-10GE. Only one of the virtual switch members has the active control plane.Download A+ VCE (latest) free Open VCE Exams . F. and scaling system bandwidth capacity to 1. increasing operational efficiency.vceplus.

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