“OSPF Practice Test”

23 Questions | Total Attempts: 4545

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OSPF Practice Test

By IMS Asia (https://www. Imsasia. Com)


Questions and Answers
  • 1. 
    Which RFC describes OSPF version 2?
    • A. 

      2328

    • B. 

      2823

    • C. 

      2238

    • D. 

      2283

  • 2. 
    Which protocols can OSPF do routing for?
    • A. 

      DECNET

    • B. 

      Vines

    • C. 

      IPX

    • D. 

      IP

  • 3. 
    Which 2 characteristics describe OSPF ?
    • A. 

      Classfull

    • B. 

      Classless

    • C. 

      Link State Protocol

    • D. 

      Distance Vector Protocol

  • 4. 
    OSPF Dijkstra calculations are done in serial
    • A. 

      True

    • B. 

      False

  • 5. 
    Which types of addresses are used as destinations for OSPF ?
    • A. 

      Multicast

    • B. 

      Broadcast

    • C. 

      Unicast

    • D. 

      Anycast

  • 6. 
    Pick the multicast addresses that OSPF uses:
    • A. 

      224.0.1.5

    • B. 

      224.0.0.1

    • C. 

      224.0.0.5

    • D. 

      224.0.0.2

  • 7. 
    Which formula is used by default by Cisco devices to do cost calculations?
    • A. 

      108/bandwidth

    • B. 

      107/bandwidth

    • C. 

      1008/bandwidth

    • D. 

      It does not do a calculation, cost needs to be manually assigned

  • 8. 
    OSPF supports different authentication methods, what does option 1 represent?
    • A. 

      No Authentication

    • B. 

      Clear Text Authentication

    • C. 

      MD5 Authentication

    • D. 

      Not a valid option

  • 9. 
    By default OSPF will load balance over how many equal cost paths? (Maximum supported)
    • A. 

      2

    • B. 

      3

    • C. 

      4

    • D. 

      OSPF will not load balance by default

  • 10. 
    OSPF is represented as protocol number _____ in the IP packet.
    • A. 

      98

    • B. 

      88

    • C. 

      89

    • D. 

      None of the above

  • 11. 
    Pick the fields that HAVE to match between OSPF neighbors for them to be able establish adjacencies.
    • A. 

      A. Router ID

    • B. 

      B. Stub Flag

    • C. 

      C. Link cost

    • D. 

      D. Timers

  • 12. 
    When OSPF forms adjacencies it has to go through several different states, please organize the following states into the proper order:a.  Exstartb.    Exchangec.     Fulld.    Initiale.    Loadingf.      Two way
  • 13. 
    What are the default timer values (Hello & Dead) for OSPF in a LAN environment?
    • A. 

      5 & 20s

    • B. 

      10 & 40s

    • C. 

      15 & 60s

    • D. 

      30 & 120s

  • 14. 
    Which of the following is not a purpose of hello packets?
    • A. 

      Change notification

    • B. 

      Neighbor discovery

    • C. 

      Keep alive

    • D. 

      Adjacency formation

  • 15. 
    Designated Router elections occur on which type of networks?
    • A. 

      Point-to-Point Leased line

    • B. 

      Ethernet

    • C. 

      ATM running in NBMA mode

    • D. 

      ATM running in Point-to-Multipoint mode

  • 16. 
    OSPF supports 5 packet types, what is packet type number 3?
    • A. 

      LSAck

    • B. 

      Hello

    • C. 

      DBD/DDP

    • D. 

      LSR

  • 17. 
    Which of the following NBMA modes are defined by the OSPF RFC?
    • A. 

      Point-to-Point

    • B. 

      Point-to-Multipoint

    • C. 

      Broadcast

    • D. 

      NBMA

  • 18. 
    In a multi-access network all devices form full adjacencies
    • A. 

      True

    • B. 

      False

  • 19. 
    On which of the following NBMA network type would static neighbors be required?
    • A. 

      Point-to-Point

    • B. 

      Point-to-Multipoint

    • C. 

      NBMA

    • D. 

      Point-to-Multipoint Non-Broadcast

  • 20. 
    Which of the following commands reflect the correct syntax for defining a static neighbor?
    • A. 

      Router(config-router)#neighbor 1.1.1.1

    • B. 

      Router(config-if)#neighbor 1.1.1.1

    • C. 

      Router(config)#ospf neighbor 1.1.1.1

    • D. 

      Router(config-router)#peer 1.1.1.1

  • 21. 
    Which are the 2 main functions of the DR?
    • A. 

      Manage LSDB for multi-access segment

    • B. 

      Generate LSA type 2.

    • C. 

      Control authentication requests

    • D. 

      Distribute updates on the multi-access segment.

  • 22. 
    Which 2 parameters assist in DR election?
    • A. 

      IP Address

    • B. 

      Router ID

    • C. 

      Priority

    • D. 

      Code version

  • 23. 
    Which LSAs can’t move between areas?
    • A. 

      Router Link

    • B. 

      Network

    • C. 

      Summary

    • D. 

      External

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