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Free 4A0-C01 Exam Braindumps
Nokia NRS II Composite Exam Questions 426–430 (page: 87)

Updated On: 9-Feb-2026
Page 87 of 170
PDF with 852 Questions

Click on the exhibit. After the Isp-ping command is executed, which of the following best describe the router's action?

  1. MPLS Echo Request packets are sent within the RSVP-TE tunnel that is signaled for "lsp-toR2".
  2. MPLS Echo Request packets are sent within the LDP tunnel that is signaled for Mlsp-toR2".
  3. MPLS Echo Request packets are IP-routed to the destination address of "lsp-toR2".
  4. MPLS Echo Request packets are sent to the destination address of "lsp-toR2" over TCP.

Answer(s): A



Which of the following most accurately describes the default behavior of a VPLS regarding the handling of a tagged frame at the ingress of SAP 1/1/1:100?

  1. The FCS is verified and the customer frame is transported intact over the service provider network.
  2. The FCS is verified and kept in the customer frame. The VLAN tag is removed for transport over the network.
  3. The FCS is verified and removed from the frame. The VLAN tag is kept for transport over the network.
  4. The FCS is verified and removed from the frame. The VLAN tag is removed for transport over the network.

Answer(s): D



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



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