Nokia 4A0-103 Exam
Nokia Multiprotocol Label Switching (Page 5 )

Updated On: 9-Feb-2026

Which of the following statements best describes downstream unsolicited label distribution?

  1. An LER may answer requests for label mappings immediately, without waiting for a label mapping from the next-hop.
  2. An LER may advertise label mappings to all peers for which it might be a next-hop for a given FEC.
  3. An LER propagates a label mapping downstream for a FE only if it has a label mapping for the FEC next- hop.
  4. An LER will only distribute a label for a FEC when it has been requested to do so.

Answer(s): B



In MPLS, labels are distributed in the opposite direction of the data flow.

  1. TRUE
  2. FALSE

Answer(s): A



Click on the exhibit button below.


Given the configuration below, what is the system ID of the destination node?

  1. 10.32.1.2
  2. 10.1.478
  3. 10.48.1.1
  4. Cannot tell from this configuration
  5. 10.1.2.2

Answer(s): B



Which of the following is defined by the following statement? All label mappings received from all peer LSRs are saved.

  1. Conservative label retention
  2. Liberal label retention.
  3. Downstream on demand.
  4. Downstream unsolicited.

Answer(s): B



What is the common usage of the MPLS EXP bits?

  1. Each implementation can use them as they see fit.
  2. They are used to carry the Ethertype value.
  3. They are used to carry the TTL value.
  4. They are used to carry QoS classification.
  5. They are used to carry fragmentation flag information

Answer(s): D






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