CCNA 3 Final 2nov 2010

51 Questions | Total Attempts: 378

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CCNA 3 Final 2nov 2010

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Questions and Answers
  • 1. 
    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?
    • A. 

      Discard the frame

    • B. 

      Forward the frame out port 2

    • C. 

      Forward the frame out port 3

    • D. 

      Forward the frame out all ports

    • E. 

      Forward the frame out all ports except port 3

    • F. 

      Add station 00-00-3D-1F-11-05 to port 2 in the forwarding table

  • 2. 
    Refer to the exhibit. An administrator issues the commands as shown on SwitchB. What is the result for port Fa0/22?
    • A. 

      The port is disabled.

    • B. 

      Security is enabled on the port.

    • C. 

      The port becomes a trunk port.

    • D. 

      The port is now a member of the default VLAN.

  • 3. 
    What is one reason that SSID cloaking is not considered an effective security measure for a wireless network?
    • A. 

      The SSID is not required to connect to a wireless network

    • B. 

      The SSID is broadcast in probe messages from clients that are looking for the AP.

    • C. 

      The SSID is the same as the AP MAC address, which is sent in every message.

    • D. 

      An attacker can spoof the SSID simply by using an SSID of NULL in all messages.

  • 4. 
    Refer to the exhibit. A new host needs to be connected to VLAN 1. Which IP address should be assigned to this new host?
    • A. 

      192.168.1.11 /28

    • B. 

      192.168.1.22 /28

    • C. 

      192.168.1.33 /28

    • D. 

      192.168.1.44 /28

    • E. 

      192.168.1.55 /28

  • 5. 
    While configuring a new switch, a network administrator configures the switch as an HTTP server. What benefits does this configuration provide?
    • A. 

      This allows the switch to host web pages for the network.

    • B. 

      This allows remote VPN connections to the switch over the Internet.

    • C. 

      This is required if a web server or web farm is attached to the switch.

    • D. 

      This allows web-based configuration tools to be used with the switch.

  • 6. 
    Refer to the exhibit. What will allow a host on VLAN 40 on switch X to communicate with a host in VLAN 40 on switch Y?
    • A. 

      QoS

    • B. 

      Routing

    • C. 

      Trunking

    • D. 

      VPN

  • 7. 
    Refer to the exhibit. A network administrator has designed and implemented a hierarchical network. What is the maximum network diameter between any two hosts on the network?
    • A. 

      5

    • B. 

      6

    • C. 

      10

    • D. 

      12

  • 8. 
    A wireless client is attempting to establish a connection with a wireless access point. What process does the client use to discover the access points which are available to it?
    • A. 

      Probing

    • B. 

      Beaconing

    • C. 

      Association

    • D. 

      Authentication

  • 9. 
     What is the benefit of the auto-MDIX feature on a Cisco Catalyst switch?
    • A. 

      Dynamically assigns a new management VLAN ID

    • B. 

      Autonegotiates IP address information for initial management connections

    • C. 

      Allows the use of straight-through patch cables regardless of connected device types

    • D. 

      Places a port immediately in the forwarding state to reduce the time for the spanning tree to reconverge

  • 10. 
    Refer to the exhibit. After the listed commands are entered into router R1 and switch S1, the administrator enters the show interface fa0/1 trunk and gets the results shown. What is the likely problem?
    • A. 

      The trunk is established, but no VLANs have been configured to use it.

    • B. 

      The router is missing the dynamic trunking protocol statements necessary to form a trunk.

    • C. 

      The trunk has not been established because the router does not support dynamic trunking protocol.

    • D. 

      The router, the switch, or both must be configured with the dynamic desirable option for dynamic trunking protocol to establish a trunk.

  • 11. 
    Refer to the exhibit. The hosts connected to switch SW1 are not able to communicate with the hosts in the same VLANs connected to switch SW2. What should be done to fix the problem?
    • A. 

      Configure VLANs with different VLAN IDs on switch SW2

    • B. 

      Reconfigure the trunk port on switch SW2 with static trunk configuration.

    • C. 

      Introduce a Layer 3 device or a switch with Layer 3 capability in the topology.

    • D. 

      Apply IP addresses that are in the same subnet to the interfaces used to connect SW1 and SW2.

  • 12. 
    Refer to the exhibit. A network administrator needs to download a previously saved configuration file from the TFTP server to Switch1. Which command will accomplish this task?
    • A. 

      Switch1# copy tftp://192.168.0.253/backup-confg nvram:startup-config

    • B. 

      Switch1# copy tftp://192.168.0.254/backup-confg nvram:startup-config

    • C. 

      Switch1# copy nvram:startup-config tftp://192.168.0.253/backup-config

    • D. 

      Switch1# copy nvram:startup-config tftp://192.168.0.254/backup-config

  • 13. 
    What happens when the crypto key zeroize rsa command is entered on a switch configured with the transport input ssh command on the vty lines?
    • A. 

      A new RSA key pair is created.

    • B. 

      The switch defaults to allowing Telnet connections only.

    • C. 

      The switch is no longer able to make SSH connections as an SSH client

    • D. 

      The switch allows remote connections only after a new RSA key pair is generated.

  • 14. 
    Which statement about STP network diameter is correct?
    • A. 

      STP diameters are restricted by convergence times.

    • B. 

      Layer 2 root elections should be optimized by adjusting BPDU timers to match network diameter.

    • C. 

      Using lower bandwidth connections between switches will allow STP to have a larger network diameter.

    • D. 

      Portfast can be used to increase the allowable switched network diameter because it disables the forward delay and maximum age timers.

  • 15. 
    In the implementation of PVST+ in a specific VLAN where all switches have default
    • A. 

      Root primary

    • B. 

      Priority 8192

    • C. 

      Priority 2048

    • D. 

      Spanning-tree mode rapid pvst

  • 16. 
    Refer to the exhibit. A new switch, SW3, has been added to the network. The network administrator determines that VLAN information is not propagating to SW3. Which command will remedy the problem?
    • A. 

      SW1(config)# vtp version 1

    • B. 

      SW2(config)# vtp mode client

    • C. 

      SW3(config)# vtp domain Cisco1

    • D. 

      SW3(config)# vtp mode transparent

  • 17. 
    In an attempt to improve switch performance, a network administrator changes the MAC aging time to ten seconds. What is a likely result of this decision?
    • A. 

      The MAC table will fill with unused addresses.

    • B. 

      Address conflicts will cause retransmission errors

    • C. 

      Unnecessary flooding will slow network performance.

    • D. 

      Timely MAC address updates will ensure rapid delivery of frames.

  • 18. 
    What is an efficient and cost effective way to minimize the frequency and effects of broadcast storms on an Ethernet LAN?
    • A. 

      Connect each PC directly to a router port.

    • B. 

      Use access control lists to filter broadcasts from the network.

    • C. 

      Divide the computers into separate VLANs on the existing switches.

    • D. 

      Divide the computers into separate workgroups using different physical switches.

  • 19. 
    Which value determines if a switch becomes the central point of reference in the spanning tree topology?
    • A. 

      Lowest bridge ID

    • B. 

      Highest revision number

    • C. 

      Lowest numeric IP address

    • D. 

      Highest numeric MAC address

  • 20. 
    Refer to the exhibit. What is the maximum number of VLANs that can be deleted from the Switch as it is configured?
    • A. 

      0

    • B. 

      4

    • C. 

      5

    • D. 

      8

    • E. 

      9

  • 21. 
    Refer to the exhibit. Switch SW2 was tested in a lab environment and then inserted into a production network without reloading its configuration. After the trunk link between SW1 and SW2 was brought up, all users lost connectivity to the network. What could be the source of the problem?
    • A. 

      All the VLANs were pruned from the trunk port between SW1 and SW2.

    • B. 

      SW1 and SW2 cannot be both set as VTP servers in the same VTP domain.

    • C. 

      VTP configuration revision number of SW2 was higher than the configuration revision number of SW1.

    • D. 

      The additional VLANs from SW2 created more VLANs than the VLAN database of SW1 could contain.

  • 22. 
    Refer to the exhibit. All edge ports are configured with the spanning-tree portfast command. Host1 is recently connected to port Fa0/1 on switch SW1 . Which statement is true about the status of port Fa0/1?
    • A. 

      The port will transition into blocking state

    • B. 

      The port will transition immediately into forwarding state.

    • C. 

      The port will transition into blocking state and immediately transition through the listening and learning states.

    • D. 

      The port will transition into blocking state and then immediately into forwarding state.

  • 23. 
    Refer to the exhibit. What does the term DYNAMIC indicate in the output that is shown?
    • A. 

      This entry can only be removed from the MAC address table by a network administrator.

    • B. 

      When forwarding a frame to the device with address 0060.5c5b.cd23, the switch does not have to perform a lookup to determine the final destination port.

    • C. 

      Only the device with MAC address 0060.5c5b.cd23 will be allowed to connect to port Fa0/18.

    • D. 

      The switch learned this MAC address from the source address in a frame received on Fa0/18.

  • 24. 
    Which type of traffic can still be received on a switch interface that is in STP blocking mode?
    • A. 

      BPDU frames

    • B. 

      Multicast frames

    • C. 

      Broadcast frames

    • D. 

      Layer 3 packets

  • 25. 
    Refer to the exhibit. Hosts B and C attempt to transmit a frame at the same time, but a collision occurs. Which hosts will receive the collision jamming signal?
    • A. 

      All hosts that are shown

    • B. 

      Only hosts B and C

    • C. 

      Only hosts A, B, and C

    • D. 

      Only hosts A, B, C, and D

    • E. 

      Only hosts A, D, E, and F

    • F. 

      Only hosts D, E, and F

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