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Computer Science :: Computer Networking

  1. Which protocol does DHCP use at the Transport layer?

  2. A.

     IP

    B.

     TCP

    C.

     UDP

    D.

     ARP


  3. Which command is used to determine if an IP access list is enabled on a particular interface?

  4. A.

     show access-lists

    B.

     show interface

    C.

     show ip interface

    D.

     show interface access-lists


  5. Where is a hub specified in the OSI model?

  6. A.

     Session layer

    B.

     Physical layer

    C.

     Data Link layer

    D.

     Application layer


  7. What does the passive command provide to dynamic routing protocols?

  8. A.

     Stops an interface from sending or receiving periodic dynamic updates.

    B.

     Stops an interface from sending periodic dynamic updates but not from receiving updates.

    C.

     Stops the router from receiving any dynamic updates.

    D.

     Stops the router from sending any dynamic updates.


  9. Which protocol is used to send a destination network unknown message back to originating hosts?

  10. A.

     TCP

    B.

     ARP

    C.

     ICMP

    D.

     BootP


  11. How often are BPDUs sent from a layer 2 device?

  12. A.

     Never

    B.

     Every 2 seconds

    C.

     Every 10 minutes

    D.

     Every 30 seconds


  13. How many broadcast domains are created when you segment a network with a 12-port switch?

  14. A.

     1

    B.

     2

    C.

     5

    D.

     12


  15. What does the command routerA (config) #line cons 0 allow you to perform next?

  16. A.

     Set the Telnet password.

    B.

     Shut down the router.

    C.

     Set your console password.

    D.

     Disable console connections.


  17. Which router command allows you to view the entire contents of all access lists?

  18. A.

     show all access-lists

    B.

     show access-lists

    C.

     show ip interface

    D.

     show interface


  19. Which class of IP address has the most host addresses available by default?

  20. A.

     A

    B.

     B

    C.

     C

    D.

     A and B