CISCO Mpls Quiz Questions And Answers

17 Questions | Total Attempts: 5277

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CISCO Mpls Quiz Questions And Answers - Quiz

What do you know about CISCO MPLS? Here is a short and interesting Cisco MPLS quiz that comprises of well researched questions and answers. MPLS, the short form of Multi-Protocol Label Switching, is a packet forwarding technique that uses “label” to determine the path to reach its destination. Try taking this quiz and check your understanding of this topic. Let's see how many correct answers you can give in this test. Wishing you good luck!


Questions and Answers
  • 1. 
    Label 3 routing protocols and label exchange protocols exist at which MPLS plane?
    • A. 

      Transport plane

    • B. 

      Control plane

    • C. 

      Data plane

    • D. 

      Sarengeti plane

  • 2. 
    LIB + FIB = 
    • A. 

      FLIB

    • B. 

      FLIBBER

    • C. 

      LFIBBED

    • D. 

      LFIB

  • 3. 
    Once labels are exchangedvia LDP between two routers _____ is built?
    • A. 

      FIB

    • B. 

      LIB

    • C. 

      FLIB

    • D. 

      LFIB

  • 4. 
    On what Cisco propriatary technology is MPLS based?
    • A. 

      PaGP

    • B. 

      CEF

    • C. 

      ISL

    • D. 

      None of the above

  • 5. 
    What table is created by CEF?
    • A. 

      Arp table

    • B. 

      FIB

    • C. 

      IP Route Table

    • D. 

      Layer 3 label

  • 6. 
    What ISP router adds labels to routes learned by say BGP?
    • A. 

      LSR Label Switching Router

    • B. 

      FIB Forwarding Information Base router

    • C. 

      LDP Label Discovery Protocol router

    • D. 

      None of the above

  • 7. 
    What are the actions of adding and removing labels called with MPLS?
    • A. 

      Plug and play

    • B. 

      Wipe on wipe off

    • C. 

      Push and pop

    • D. 

      All of the above

  • 8. 
    _______ sends data based on L3 or L2 information and takes care of label swapping. 
    • A. 

      Transport plane

    • B. 

      Control plane

    • C. 

      Data plane

    • D. 

      Sarengeti plane

  • 9. 
    Where does the MPLS label live in a data frame?
    • A. 

      Between IP and data

    • B. 

      Between IP and MAC

    • C. 

      Within the IP layer

    • D. 

      None of the above

  • 10. 
    How many bits in an MPLS label?
    • A. 

      10

    • B. 

      16

    • C. 

      20

    • D. 

      Label, TTL, and BS

  • 11. 
    What are the four portions of MPLS info in a data frame?
    • A. 

      Label, Experimental, BS (last label in stack), TTL

    • B. 

      Label, TTL, Checksum

    • C. 

      Label, Experimental, TTL

    • D. 

      None of the above

    • E. 

      None of the above

  • 12. 
    Name the device that adds or strips labels for frames entering or exiting the provider MPLS network.
    • A. 

      Core router

    • B. 

      Edge Label Switch Router

    • C. 

      Edge Switch

    • D. 

      None of the above

  • 13. 
    Official routing protocol of MPLS
    • A. 

      RIPv2

    • B. 

      FIB Forwarding Information Base

    • C. 

      LDP Label Distribution Protocol.

    • D. 

      None of the above

  • 14. 
    Neighbor Discovery Session establishment Label Distribution/exchange  What are these three? 
    • A. 

      LDP's three steps

    • B. 

      VTP's three steps

    • C. 

      PAgP's three steps

    • D. 

      None of the above

  • 15. 
    To what multicast address are LDP hellos sent?
    • A. 

      224.0.0.10

    • B. 

      224.0.0.5

    • C. 

      224.0.0.2

    • D. 

      None of the above

  • 16. 
    On what UDP port is LDP sent?
    • A. 

      22

    • B. 

      646

    • C. 

      464

    • D. 

      643

  • 17. 
    What is the difference between the FIB and the LFIB?
    • A. 

      FIB forwards IP packets while LFIB forwarded *labelled* IP packets.

    • B. 

      FIB forwards routing information while LFIB forwards label routing information.

    • C. 

      FIB forwards full label paths while LFIB forwards only limited path information.

    • D. 

      None of the above

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