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Computer Science :: Computer Networking

  1. What are reasons for creating OSPF in a hierarchical design?
    1. To decrease routing overhead
    2. To speed up convergence
    3. To confine network instability to single areas of the network
    4. To make configuring OSPF easier

  2. A.

     1, 2 and 3

    B.

     3 only

    C.

     3 and 4

    D.

     2, 3 nd 4


  3. Which two of the following commands will place network 10.2.3.0/24 into area 0?
    1. router eigrp 10
    2. router ospf 10
    3. network 10.0.0.0
    4. network 10.2.3.0 0.0.0.255 area0
    5. network 10.2.3.0 0.0.0.255 area 0

  4. A.

     1 and 4

    B.

     2, 4, and 5

    C.

     2 and 5

    D.

     3 and 4


  5. If routers in a single area are configured with the same priority value, what value does a router use for the OSPF Router ID in the absence of a loopback interface?

  6. A.

     The lowest IP address of any physical interface

    B.

     The highest IP address of any physical interface

    C.

     The lowest IP address of any logical interface

    D.

     The highest IP address of any logical interface


  7. Which of the following protocols support VLSM, summarization, and discontiguous networking?
    1. RIPv1
    2. IGRP
    3. EIGRP
    4. OSPF
    5. BGP
    6. RIPv2

  8. A.

     1 and 4

    B.

     2 and 5

    C.

     3, 4 and 6

    D.

     All of the above


  9. You get a call from a network administrator who tells you that he typed the following into his router:

    Router (config) #router ospf 1

    Router (config-router) #network 10.0.0.0 255.0.0.0 area 0

    He tells you he still can't see any routes in the routing table. What configuration error did the administrator make?

  10. A.

     The wildcard mask is incorrect.

    B.

     The OSPF area is wrong.

    C.

     The OSPF Process ID is incorrect.

    D.

     The AS configuration is wrong.


  11. Which of the following network types have a designated router and a backup designated router assigned?
    1. Broadcast
    2. Point-to-point
    3. NBMA
    4. NBMA point-to-point

  12. A.

     1, 2 and 3

    B.

     1 and 3

    C.

     3 and 4

    D.

     All of the above


  13. Which type of OSPF network will elect a backup designated router?
    1. Broadcast multi-access
    2. Non-broadcast multi-access
    3. Point-to-point
    4. Broadcast multipoint

  14. A.

     1 and 2

    B.

     3 and 4

    C.

     3 only

    D.

     None of the above


  15. You need the IP address of the devices with which the router has established an adjacency. Also, the retransmit interval and the queue counts for the adjacent routers need to be checked. What command will display the required information?

  16. A.

     show ip eigrp adjacency

    B.

     show ip eigrp topology

    C.

     show ip eigrp interfaces

    D.

     show ip eigrp neighbors


  17. Which of the following network types have a designated router and a backup designated router assigned? 1. Broadcast 2. Point-to-point 3. NBMA 4. NBMA point-to-point

  18. A.

     1, 2 and 3

    B.

     1 and 3

    C.

     3 and 4

    D.

     All of the above