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Free 4A0-103 Exam Braindumps
Nokia Multiprotocol Label Switching Questions 61–65 (page: 14)

Updated On: 9-Feb-2026
Page 14 of 51
PDF with 256 Questions

Which of the following statements regarding the MPLS SWAP label operation is true?

  1. The inner label will be exchanged with the MPLS outer label.
  2. The inner label will be exchanged for a new label.
  3. The outer label will be exchanged for a new label.
  4. All labels will be exchanged for one new label.
  5. All labels will be exchanged for an equal number of new labels.

Answer(s): C



If the destination IP address of a received unlabeled packet is successfully matched in the FIB, which of the following statements are true? Choose two answers.

  1. A PUSH label stack operation must be performed.
  2. The outgoing interface and next-hop address will be determined from the FI
  3. The packet can be forwarded as a labeled or unlabeled packet.
  4. A POP label stack operation may be performed.

Answer(s): B,C



Which of the following devices receives labeled packets from the MPLS domain, removes the MPLS header, and forwards unlabeled packets outside the MPLS domain?

  1. P router
  2. LSR
  3. eLER
  4. iLER

Answer(s): C



Which of the following statements are true? Choose two answers

  1. Selected labels from the FIB are populated to the LIB.
  2. Selected labels from the LIB are populated to the LFI
  3. Selected routes from the RIB are populated to the FIB.
  4. Selected routes from the FIB are populated to the RIB.
  5. All labels from the LIB are populated to the LFIB.

Answer(s): B,C



When a device receives a labeled packet, which of the following can occur?

  1. The packet can only be forwarded as an unlabeled packet.
  2. The packet can be forwarded as a labeled or unlabeled packet, depending on the received label value.
  3. The packet can be forwarded as a labeled or unlabeled packet, depending on the destination IP address in the payload
  4. The packet can only be forwarded as a labeled packet.

Answer(s): B



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