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Nokia 4A0-C01 Exam
Nokia NRS II Composite Exam (Page 29 )

Updated On: 19-Jan-2026
Page 29 of 170
PDF with 852 Questions

Click on the exhibit.

An LSP path is established on router R1 toward router R6. If the link between routers R4 and R6 goes down, which of the following is the quickest way for service recovery?

  1. Router R1 updates its FIB after a new SPF calculation.
  2. Router R1 switches to a secondary path.
  3. Router R4 switches to a FRR path.
  4. Router R4 switches to a standby secondary path.

Answer(s): C



To enable the LDP-over-RSVP feature, which of the following configurations is NOT required on an Alcatel-Lucent 7750 SR?

  1. Enable the Idp-over-rsvp feature on all PEs and ABRs along the LSP tunnel.
  2. Configure Link-LDP sessions between each PE-ABR and ABR-ABR pair.
  3. Configure RSVP-TE LSPs in each area between each PE-ABR and ABR-ABR pair.
  4. Configure T-LDP sessions with the tunneling option.

Answer(s): B



Click on the exhibit.

An LSP path is established on router R1 toward router R6. If there is a problem on router R4, but the link between R2 and R4 remains up, which of the following will affect the failure detection time?

  1. The time router R2 takes to receive a PATH Error message from router R4.
  2. The time router R2 takes to find out a number of RSVP Hello messages have been missed.
  3. The time router R2 takes to send a PATH Tear message to the head-end router.
  4. The time router R2 takes to receive a PATH message from router R4 after a PATH refresh interval.

Answer(s): B



Which of the following 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



Facility fast reroute with node protection is enabled for an LSP, which of the following is FALSE?

  1. Each PLR signals a bypass tunnel that avoids the next-hop downstream router.
  2. When a failure occurs, the PLR pushs an additional label onto the label stack.
  3. No bypass tunnel is established if the PLR cannot provide node protection.
  4. The head-end router sets the local protection desired flag in the session attribute object.

Answer(s): C



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