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Free 4A0-103 Exam Braindumps
Nokia Multiprotocol Label Switching Questions 46–50 (page: 11)

Updated On: 9-Feb-2026
Page 11 of 51
PDF with 256 Questions

Which of the following statements is true when the implicit null is implemented?

  1. The penultimate router will POP the top label from the packets.
  2. The eLER will receive packets with a top label value of 3.
  3. The eLER will receive packets with a top label value of 0.
  4. The penultimate router will always receive unlabeled packets.
  5. The penultimate router performs a double lookup on the packet.

Answer(s): A



Which of the following is described by the following statement? An LSR propagates a label mapping only for a FEC for which it has a label mapping for the FEC next-hop.

  1. Independent control mode
  2. Ordered control mode
  3. Liberal label retention
  4. Conservative label retention
  5. Downstream on demand.

Answer(s): B



Which of the following commands is used to display the database containing the OSPF-TE LSAs?

  1. show router ospf opaque-database
  2. show router ospf database
  3. show router ospf opaque-Isa
  4. show router ospf te opaque

Answer(s): A



Which of the following statements regarding LSPs are true? (Choose two)

  1. IGP-based LSPs are established solely from information contained in routing tables.
  2. The constraint-based routed LSP is calculated at the ingress of the network, based on the router database and user defined constraints.
  3. The constraint-based routed LSP is calculated at each hop of the LSP, based on the route table and user defined constraints.
  4. IGP-based LSPs must use LDP signaling.

Answer(s): A,B



Which of the following statements regarding LDP-over-RSVP are true? (Choose two)

  1. Targeted sessions must exist between all routers in the tunnel's path.
  2. Each LDP interface must be configured to support LDP tunneling.
  3. LDP prefixes resolve to an RSVP LSP, rather than to a physical egress interface.
  4. RSVP LSPs must exist between each PE-ABR pair, or ABR-ABR pair in each area.

Answer(s): C,D



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