4A0-103

Review 245 4A0-103 practice questions with answer explanations and community insights.

Question 1

You wish to advertise LDP labels for all local networks; which is the most effective policy statement to use?

  1. from prefix-list direct
  2. match local
  3. from protocol direct
  4. match protocol direct
  5. from protocol local

Question 2

During node protection signaling, the PLR knows the address of the MP from which of the following methods?

  1. The PLR issues a RSVP path message to the destination router to request the address of the MP.
  2. The PLR learns the address of the MP from the ERO.
  3. The PLR learns the address of the MP from the RRO
  4. The PLR learns the address of the MP from the targeted RSVP hello message.
  5. The PLR does not need to know the address of the MP.

Question 3

What is the significance of receiving a packet with the bottom MPLS label S bit set to 1?

  1. It results in forwarding based on the next packet header.
  2. It indicates that the label is the bottom of the MPLS label stack.
  3. It indicates that the label is the top of the MPLS label stack.
  4. Any LSR that receives an S bit set to 1 must discard the packet.

Question 4

Which command can be used to verify the LDP settings for label distribution and retention?

  1. show router ldp default
  2. show router ldp parameters
  3. show router ldp settings
  4. show router mpls settings
  5. show router mpls label-options

Question 5

Router R3 signals an LSP, reserving 1Gbps bandwidth on a 10Gbps link. RSVP configuration limits reservable bandwidth to 20 percent on the egress interface. Which of the following statements is true?

  1. The egress RSVP interface has 80 percent bandwidth unreserved.
  2. LSPs can reserve an additional 9.9 Gbps bandwidth on this RSVP interface.
  3. The head end reserves 100Mbps for the LSP
  4. The egress RSVP interface has 1 Gbps bandwidth unreserved.
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