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ESwitching Practice Final Exam - CCNA Exploration: LAN Switching and Wireless (Version

4.0)

1
A network technician is evaluating the desirable features of both access and distribution layer
switches. Which two features are common to switches at these two layers? (Choose two.)
QoS ***
PoE
port security
link aggregation***
application based filtering

2
Refer to the exhibit. An administrator documented the output of a CAM table from an Ethernet
switch as shown. What action will the switch take when it receives the frame shown at the
bottom of the exhibit?
discard the frame
forward the frame out port 2
forward the frame out port 3
forward the frame out all ports
forward the frame out all ports except port 3 ***
add station 00-00-3D-1F-11-05 to port 2 in the forwarding table
3
A switch that is using port-based memory buffering receives two incoming frames on the
same port. The destination port for the first frame that is received is busy. How will the switch
handle the second frame that it received?
The second frame will have to wait to be delivered even if its destination port is available.***
The second frame will be delivered to the memory buffer for its destination port.
The second frame will be placed in a common memory buffer to await delivery.
The second frame will be dropped.
4
Refer to the exhibit. Hosts A and B attempt to transmit a frame at the same time and a
collision occurs. When will host D be able to transmit?
immediately***
after sending its jam signal
after host A and host B have completed transmission
after the jam signal clears and its backoff delay expires
5
Where is the information of newly created VLANs stored on a switch?
CPU

10 A network administrator needs to save the configuration file currently in RAM to NVRAM before rebooting the switch.flash*** NVRAM RAM 6 Which three statements are correct concerning the default configuration of a new switch? (Choose three. S1 does not have login configured on the vty lines. The transport input command is configured incorrectly. What is the problem? The enable secret password was not set. The network administrator enters the configuration shown to allow both SSH and Telnet connections to the switch. Telnet and SSH cannot be configured simultaneously.) Spanning Tree Protocol is disabled. The Telnet connections fail. All switch ports are assigned to VLAN1. but PC1 is unable to remotely manage the switch. The VLAN1 interface has not be enabled with the no shutdown command. How can this problem be resolved? Configure the Fa0/1 interface of the switch in trunk mode. Which command should the administrator issue? . but none set" message when attempting to connect to S1. the administrator receives a "password required. 9 Refer to the exhibit.*** Configure the native VLAN on the switch. S1 does not have a password configured for the vty lines. *** The flash directory contains the IOS image. *** The crypto key is not properly configured to generate passwords. Configure a default gateway on the switch. Enable password is configured as cisco.*** VLAN1 is configured with a management IP address. After entering the commands in the exhibit. What is the most likely cause of this problem? The SSH version number is wrong.*** 7 Refer to the exhibit. The switch VTY lines have been properly configured. SSH has been configured on the wrong line. Configure the Fa0/1 interface of the switch to allow all VLANs. All interfaces are set to auto-negotiation of speed and duplex. **** 8 Refer to the exhibit.

What happens when a frame from a source MAC address different from 00a8. 12 Refer to the exhibit. 13 When configuring a router to act as an SSH server. FastEthernet port 0/5 will show an err-disabled message. *** The enable password is used if the enable secret password is not set.txt running-config 11 Which three statements are correct regarding passwords configured on a switch? (Choose three.*** The enable password command is more secure than the enable secret command.*** The port is shut down.ba27 reaches switch port 0/5? The frame is dropped.Switch1# copy startup-config flash:filename Switch1# copy running-config startup-config*** Switch1# copy startup-config running-config Switch1# copy flash:config.d2e4. An error message is displayed.) A different password can be set on each vty line. *** The service password-encryption command applies encryption to all passwords normally displayed in plain text by the show running-config command. The service password-encryption command is entered in global configuration mode and only encrypts global configuration mode passwords. what should be configured before issuing the crypto key generate rsa command? the security domain name the VTP domain name the IP domain name *** the host name 14 How does Spanning Tree Protocol aid network architecture? allows for redundant links by eliminating loops*** provides greater scalability by eliminating collisions reduces switch processor load by reducing broadcast traffic on trunk links reduces administrative overhead by sharing VLAN databases between switches across the network 15 Which type of frame contains information that is used in the election of the spanning tree root bridge? BID LSA .

but is sending and receiving data. root ports. The switch is receiving BPDUs and populating the MAC address table. root ports. Assuming the bridge priority values are set to default on all switches. nondesignated ports *** root ports. 19 Refer to the exhibit. but not sending data. root bridge. *** 18 What can an administrator do to ensure that a specific switch will win a root election if all switches are set to their default configurations? Set the bridge priority to 16384. designated ports. *** Change the VTP mode to server. root bridge root bridge. designated ports. designated ports 17 Refer to the exhibit. nondesignated ports. *** 21 Refer to the exhibit. Which port will act as the STP root port if all links are operating at the same bandwidth? Fa0/1 interface of S1 Fa0/2 interface of S1*** Fa0/1 interface of S2 Fa0/2 interface of S2 20 Which statement correctly describes the spanning-tree path cost? It is calculated based on the total number of switches connected in a loop. Both switches are configured with default bridge priority. It is calculated based on the bridge priority of the switches along a given path. root ports nondesignated ports. Assign a port priority of 128 for all ports on the switch. It is calculated based on the utilization of all the switches along a given path. determined by link speed. The switch is not receiving BPDUs. What does “LEARNING” mean as it relates to the Spanning Tree Protocol? The switch is sending and receiving data frames. nondesignated ports. root bridge. which switch will be elected as the root bridge of the spanning tree topology? . The switch is participating in the election process by forwarding the BPDUs it receives.LSU BPDU *** 16 What is the correct order in which the STP components are chosen? designated ports. Configure a loopback interface with the highest IP address. for each switch port along a given path. It is calculated based on the sum of the port cost value.

*** A cost of 38 is the value that is being advertised out port 26 on the upstream switch. computer D. computer D. computer E and Router1 computer A. Which IP address should be assigned to this new host? 172. which is closer to the root switch. computer E and Router1 24 Refer to the exhibit. The host default gateway addresses must be on the same logical network. which is lower than any other switch that participates in the VLAN0001 spanning-tree domain. computer C. *** The cost represents the numeric value for the fastest path from SW1 to the root switch.*** A router is required to forward traffic between Host1 and Host2.) The switch ports are on different VLANs. computer B.16. The root switch is advertising a cost of 38. computer D. Which devices will see the broadcast? computer B computer B and Router1 computer C and Router1 *** computer B. 23 Refer to the exhibit.10.68 /27 172.99 /28 . SW1 connects via a FastEthernet link to an upstream switch that in turn is directly connected to the root switch via a Gigabit Ethernet link. computer C. Computer A sends a broadcast message.*** The switch IP address is on the wrong subnet. SW1 is a 2960 switch with default values assigned. SW1 adds the cost of a FastEthernet link to 38 to determine the total cost that is required to reach the root switch. The hosts are configured on different logical networks.) SW1 connects via two FastEthernet links to reach the root switch. A new host needs to be connected to VLAN 20.Cat-A *** Cat-B Cat-C Cat-D 22 Refer to the exhibit. Which two statements are true about what the cost value of 38 represents for SW1? (Choose two. computer E and Router1 computer B. 25 Refer to the exhibit.*** The VLAN port assignments must be contiguous for each VLAN.10.16. What three statements describe why Host1 and Host2 are unable to communicate? (Choose three.

10. 28 Refer to the exhibit.*** RTB does not have an active routing protocol. The IP address of computer B is in the wrong logical network. Router interface Fa0/1 has the wrong trunk encapsulation type configured. What are two possible reasons that ports Fa0/1 through Fa0/4. A network administrator issues the command shown on Switch1. What is a possible cause of this failure? Port Fa0/11 is in the wrong VLAN. The no shutdown command was not issued on these ports. 29 What VLANs are allowed across a trunk when the range of allowed VLANs is set to the default value? All VLANs will be allowed across the trunk. The switch negotiated trunk links for interfaces Fa0/1 and Gi0/1. The switches will negotiate via VTP which VLANs to allow across the trunk.172. RTB can ping computer A but cannot ping computer B. 30 Refer to the exhibit. A Cisco proprietary protocol is in use for interfaces Fa0/1 and Gi0/1.16. RTB is configured for traditional inter-VLAN routing.16. Which statement is true regarding the information shown? Only one VLAN is currently configured to use the trunk links.16.30.120 /28 172.30. *** . Interfaces Gi0/1 and Fa0/1 are allowed to carry data from multiple VLANs. Only the native VLAN will be allowed across the trunk. *** The ports have been assigned to the native VLAN.16.) The ports have been configured as trunks.146 /27 26 What is the purpose of the switch command switchport access vlan 99? to enable port security to make the port operational to assign the port to a particular VLAN *** to designate the VLAN that does not get tagged to assign the port to the native VLAN (VLAN 99) 27 Refer to the exhibit. *** The VLAN that they are assigned to has been deleted.30.*** Only VLAN 1 will be allowed across the trunk. and ports Fa0/11 and Fa0/12 do not show in the command output? (Choose two.96 /27 172. The ports currently do not have any devices plugged into them.110 /27 *** 172.

and DS2 33 Refer to the exhibit.1. Apply IP addresses that are in the same subnet to the interfaces that are used to connect switches 101-2FL and 101-3FL.3. They will be tagged with the highest VLAN ID. They will be tagged with the trunk Port VLAN ID. Utilize the switchport trunk allowed vlan all command on switch 101-3FL to permit the VLAN traffic. . 32 Refer to the exhibit. 34 Refer to the exhibit. Both switches are configured as displayed and the native VLAN is the default. The hosts that are connected to switch 101-2FL are not able to communicate with the hosts in their corresponding VLANs that are connected to switch 101-3FL. Associate hosts A and B with VLAN 10 instead of VLAN 1. What will the router do with this packet? The router will drop the packet. The network administrator configures both switches as displayed. Which statement is true about the frames traveling between host A and host B? They will travel untagged.1. Router RA receives a packet with a source address of 192. The router will forward the packet out interface FastEthernet 0/1. The switches have been configured as shown.35 and a destination address of 192. *** Introduce a Layer 3 device or a switch with Layer 3 capability into the topology. However.85.31 Refer to the exhibit. *** They will be tagged with VLAN ID 1. What should be done to fix the problem? Configure port Fa0/2 on switch 101-3FL as a static trunk link.2 and interface FastEthernet 0/1.2. On which devices should the inter-VLAN routing be configured? AS1 and AS2 DS1 and DS2*** Gateway and CS1 Gateway. A network administrator needs to implement inter-VLAN routing on a hierarchical network. 35 Refer to the exhibit.3. What action should the administrator take to enable this communication? Include a router in the topology.1.168. CS1. The router will forward the packet out interface FastEthernet 0/1.168. *** The router will forward the packet out interface FastEthernet 0/1. DS1. host C is unable to ping host D and host E is unable to ping host F. The router will forward the packet out interface FastEthernet 0/1.

*** This switch will cause no disruption in the VTP domain operations if the rest of the switches in . 38 Refer to the exhibit. Which two facts can be confirmed by this output? (Choose two. After receiving a console notification on Switch2. and an 802. 36 Refer to the exhibit. This switch will drop all VTP advertisements that come from the switches that are configured in the same VTP domain. SW1 will send all untagged traffic to VLAN 1. The router. the trunk has not been established. Which configuration change can be made to correct the problem with the trunk link? Set the Fa0/1 interface on Switch2 to trunk mode. or both must be configured with the dynamic desirable option for Dynamic Trunking Protocol to establish a trunk. The network administrator enters the show interfaces trunk command and receives the output as shown. the switch. the network administrator begins to troubleshoot the trunk link between Switch1 and Switch2. 37 Refer to the exhibit. What is the cause of the "not-trunking" status for switch port Fa0/1? The trunk is established.1q trunk is successfully established. The commands are entered into switch SW1 as shown.*** SW1 will send untagged traffic to all VLANs that are configured on the trunk. How does switch SW1 handle the untagged traffic that is destined for the trunk? SW1 will drop all untagged traffic. Because the router does not support Dynamic Trunking Protocol.) This switch shows no configuration revision errors. *** Add the switchport nonegotiate command to the configuration of S2. This switch has established two-way communication with the neighboring devices. Configure one trunk port in the dynamic desirable mode. The router and switch have been configured with the commands that are displayed in the exhibit. but no VLANs have been configured to use it. Change the trunk encapsulation on Switch2 Fa0/1 to dot1q. *** The router is missing the dynamic trunking protocol statements necessary to form a trunk.*** Change the access mode VLAN on Switch2 to the default VLAN 1. 39 Refer to the exhibit. SW1 will send all untagged traffic to VLAN 25. This switch is configured to advertise its VLAN configuration to other VTP-enabled switches in the same VTP domain. Router R-West and switch S-West1 are connected via a single ethernet cable between the router interface fa0/0 and the switch interface fa0/1. Change the native VLAN on Switch2 interface Fa0/1 to VLAN 100.Remove the native VLAN from the trunk.

What will be pruned in the VTP advertisements from switch ST-C to switch ST-1? VLAN 30 VLAN 20 and VLAN 30 VLAN 1. Configuring several switches in server mode will allow all VLANs to be entered from a single switch and preserve VLAN data if any of the switches or connections are lost. 41 Refer to the exhibit. and Switch4. and VLAN 30 VLAN 2 through VLAN 29.the same VTP domain have a higher configuration revision number. A new VLAN can be added to Switch1 and that information will be added to Switch2 and Switch4. *** An existing VLAN can be deleted from Switch4 and that VLAN will be deleted from Switch1 and Switch2. *** An existing VLAN can be deleted from Switch2 and that VLAN will be deleted from Switch1 and Switch4. 40 Refer to the exhibit. The links between the switches are configured as trunk links and all VLANs are allowed on the trunks. which VLANs will be available on SW3 and SW4? Option 2 43 A network administrator is implementing VTP in a large campus LAN that contains one hundred switches. The switches in the exhibit have VTP pruning enabled. A new VLAN can be added to Switch4 and that information will be added to Switch1. A new VLAN can be added to Switch3 and that information will be added to Switch1. The switches are configured for VTP as shown.) A new VLAN can be added to Switch1 and that information will be added only to Switch2. Switch2. Using transparent mode on all switches will allow for efficient administration and prevent VLAN data loss from the loss of any single switch. Which two statements correctly describe the operation of these switches? (Choose two. VLAN 20. *** Configuring one primary and one backup switch in server mode and all other switches in transparent mode will provide fault tolerance for the VLAN data and allow for efficient . On the basis of the show running-config output that is provided. Switches SW3 and SW4 are brand new switches with default configurations. and Switch3. What are valid considerations for reliability and administration? Using server mode on a single master switch and client mode on all other switches will provide the most fault tolerance for retaining VLAN information in all switches if power is lost on the network. and VLAN 31 through VLAN 1000 *** 42 Refer to the exhibit. Switch2.

None of the configured VLANs on SW1 and SW2 are present on SW3. In the Wireless menu option of a Linksys integrated router. what does . similar to a switch. An administrator connects four switches to Switch1 and configures trunk links between them. *** Reconfigure all switches as VTP clients to synchronize the VLAN database information. Reconfigure the VTP password to be consistent on all VTP switches. *** A wireless AP does not require any physical connection to allow wireless clients to access the Internet. Collisions do not occur between wireless NICs and APs.distribution of the VLAN configurations to all switches. The VTP domain has been configured as shown in the exhibit. What should be done to remedy the problem? Reconfigure switches SW2 and SW3 in VTP transparent mode. 44 Refer to the exhibit. Which of the four switches will successfully receive and install VTP updates from Switch1? Option 4 45 Refer to the exhibit.) An AP converts the TCP/IP data packets from their 802. The wireless router performs the roles of AP and router. Reconfigure the VTP server as a VTP client and then return to VTP server mode to reset the configuration revision number. *** 48 Which parameter is associated with wireless authentication? shared key *** SSID ad hoc channel 49 Refer to the graphic. An AP is a layer 2 device. that provides dedicated bandwidth to each connected wireless host.11 frame encapsulation format to the 802. Switch1 is configured for VTP as shown. 46 Which device must be installed in each computer to allow a wireless connection to be established? DSL modem wireless NIC *** wireless router wireless access point 47 Which two statements are correct about wireless infrastructure components? (Choose two.3 Ethernet frame format on the wired Ethernet network.

The router supports both wired and wireless connections. and 802. *** The router supports connectivity through infrared and radio frequencies.11b. Use the same BSSID address for each AP.the Network Mode option Mixed mean? The router supports encryption and authentication. A wireless infrastructure has been established in a company building as shown. 50 Refer to the exhibit.11n devices. the devices lose connectivity when the users roam. However. The design goal was to allow roaming between the three APs for handheld devices. *** Reposition the APs so that each area of signal strength overlaps the neighbor by at least 10- 15%.11g. How can this problem be fixed? Assign different SSIDs to each AP. . Reconfigure all APs to the same channel. The router supports 802. 802.