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  • Question
  • Which statement is true regarding classless routing protocols?

    1. The use of discontiguous networks is not allowed.
    2. The use of variable length subnet masks is permitted.
    3. RIPv1 is a classless routing protocol.
    4. IGRP supports classless routing within the same autonomous system.
    5. RIPv2 supports classless routing.


  • Options
  • A. 1, 3 and 5
  • B. 3 and 4
  • C. 2 and 5
  • D. None of the above

  • Correct Answer
  • 2 and 5 

    Explanation
    Classful routing means that all hosts in the internetwork use the same mask. Classless routing means that you can use Variable Length Subnet Masks (VLSMs) and can also support discontiguous networking.

  • IP Routing problems


    Search Results


    • 1. Which command displays RIP routing updates?

    • Options
    • A. show ip route
    • B. debug ip rip
    • C. show protocols
    • D. debug ip route
    • Discuss
    • 2. IGRP uses which of the following as default parameters for finding the best path to a remote network?

      1. Hop count
      2. MTU
      3. Cumulative interface delay
      4. STP
      5. Path bandwidth value

    • Options
    • A. 1 and 3
    • B. 3 and 5
    • C. 2, 3 and 5
    • D. All of the above
    • Discuss
    • 3. What does RIPv2 use to prevent routing loops?

      1. CIDR
      2. Split horizon
      3. Authentication
      4. Classless masking
      5. Holddown timers

    • Options
    • A. 1 and 3
    • B. 2, 3 and 5
    • C. 2 and 5
    • D. 3 and 4
    • Discuss
    • 4. You type debug ip rip on your router console and see that 172.16.10.0 is being advertised to you with a metric of 16. What does this mean?

    • Options
    • A. The route is 16 hops away.
    • B. The route has a delay of 16 microseconds.
    • C. The route is inaccessible.
    • D. The route is queued at 16 messages a second.
    • Discuss
    • 5. Which two of the following are true regarding the distance-vector and link-state routing protocols?

      1. Link state sends its complete routing table out all active interfaces on periodic time intervals.
      2. Distance vector sends its complete routing table out all active interfaces on periodic time intervals.
      3. Link state sends updates containing the state of its own links to all routers in the internetwork.
      4. Distance vector sends updates containing the state of its own links to all routers in the internetwork.

    • Options
    • A. 1 only
    • B. 3 only
    • C. 2 and 3 only
    • D. None of the above
    • Discuss
    • 6. The Corporate router receives an IP packet with a source IP address of 192.168.214.20 and a destination address of 192.168.22.3. Looking at the output from the Corporate router, what will the router do with this packet?
      Corp#sh ip route
      [output cut]
      R    192.168.215.0 [120/2] via 192.168.20.2, 00:00:23, Serial0/0
      R    192.168.115.0 [120/1] via 192.168.20.2, 00:00:23, Serial0/0
      R    192.168.30.0 [120/1] via 192.168.20.2, 00:00:23, Serial0/0
      C    192.168.20.0 is directly connected, Serial0/0
      C    192.168.214.0 is directly connected, FastEthernet0/0

    • Options
    • A. The packet will be discarded.
    • B. The packet will be routed out the S0/0 interface.
    • C. The router will broadcast looking for the destination.
    • D. The packet will be routed out the Fa0/0 interface.
    • Discuss
    • 7. Which of the following statements are true regarding the command ip route 172.16.4.0 255.255.255.0 192.168.4.2?

      1. The command is used to establish a static route.
      2. The default administrative distance is used.
      3. The command is used to configure the default route.
      4. The subnet mask for the source address is 255.255.255.0.

    • Options
    • A. 1 and 2
    • B. 2 and 4
    • C. 3 and 4
    • D. All of the above
    • Discuss
    • 8. What command will display the forward/filter table?

    • Options
    • A. show mac filter
    • B. show run
    • C. show mac address-table
    • D. show mac filter-table
    • Discuss
    • 9. You have two switches connected together with two crossover cables for redundancy, and STP is disabled. Which of the following will happen between the switches?

    • Options
    • A. The routing tables on the switches will not update.
    • B. The MAC forward/filter table will not update on the switch.
    • C. Broadcast storms will occur on the switched network.
    • D. The switches will automatically load-balance between the two links.
    • Discuss
    • 10. Layer 2 switching provides which of the following?

      1. Hardware-based bridging (ASIC)
      2. Wire speed
      3. Low latency
      4. Low cost

    • Options
    • A. 1 and 3
    • B. 2 and 4
    • C. 1, 2 and 4
    • D. All of the above
    • Discuss


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