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MPLS Questions

May 28th, 2017 Go to comments

Question 1

Explanation

MPLS operates at a layer that lies between traditional definitions of Layer 2 (data link layer) and Layer 3 (network layer), and thus is often referred to as a “layer 2.5” protocol.

Question 2

Explanation

MPLS supports IPv4, IPv6, IPX, AppleTalk at the network layer. MPLS supports Ethernet, Token Ring, FDDI, ATM, FR, PPP at the link layer.

MPLS uses label switching to forward packets over Ethernet. Labels are assigned to packets based on groupings or forwarding equivalence classes (FECs). The label is added between the Layer 2 and the Layer 3 header.

Comments (11) Comments
  1. Anonymous
    February 9th, 2017

    Question 1

    What is a benefit of CEF switching?

    A. CEF supports IP source prefix-based switching using the FIB.
    B. CEF uses less memory than fast switching uses.
    C. CEF is less CPU intensive than fast switching is.
    D. CEF provides Netflow statistics with minimum CPU overhead.
    E. CEF allows multiple data planes to share a common control plane.

  2. Joe
    February 14th, 2017

    Question 2: (Feb 7 2017 PDF)

    What’s are true about MPLS?

    A. It use a label to separate traffic from several customer
    B. It use IPv4 IPv6
    C. Other
    D. Other

    Please fix this question.

  3. Blackbird
    February 15th, 2017

    @Anonymous ‘C’

  4. pallab-ganguly@yahoo.com
    February 20th, 2017

    pls send the questions

  5. Neil
    February 27th, 2017

    Anyone have a question along the lines of “which WAN technology is secure and encrypted by default?”

    A) MPLS
    B) VSAT
    C) DSL
    D) ….?

  6. Nick
    March 3rd, 2017

    How many question do we get to see if we register??

  7. subhan
    March 15th, 2017

    What’s are true about MPLS?
    A. It use a label to separate traffic from several customer
    answer is this “A”

  8. Anonymous
    March 27th, 2017

    hey people kindly put answers for these questions

  9. Anonymous
    April 8th, 2017

    ANIL anyhow tell me about MBLS concept

  10. examam
    April 8th, 2017

    q1. CEF offers the following benefits:

    •Improved performance—CEF is less CPU-intensive than fast switching route caching.

  11. PrafulC
    May 16th, 2017

    Anyone have a question along the lines of “which WAN technology is secure and encrypted by default?”

    A) MPLS
    B) VSAT
    C) DSL
    D) ….?