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Nokia Multiprotocol Label Switching

Exam Details

  • Exam Code
    :4A0-103
  • Exam Name
    :Nokia Multiprotocol Label Switching
  • Certification
    :Nokia Certifications
  • Vendor
    :Nokia
  • Total Questions
    :249 Q&As
  • Last Updated
    :Apr 13, 2025

Nokia Nokia Certifications 4A0-103 Questions & Answers

  • Question 111:

    Click on the exhibit.

    An LSP traverses the path R1-R2-R3-R6 and facility fast reroute is enabled. If the protected LSP carries one transport label and one service label, how many labels will be on the bypass tunnel if router R2 fails?

    A. 1

    B. 2

    C. 3

    D. 4

  • Question 112:

    An LSP is enabled with one-to-one fast reroute and node protection. What action does the PLR take if node protection cannot be provided?

    A. The PLR attempts to provide link protection.

    B. The PLR disregards the request after three failed attempts.

    C. The PLR changes the PATH message to request link protection.

    D. The PLR brings down the primary LSP-path.

  • Question 113:

    Click on the exhibit.

    An LDP-over-RSVP tunnel is established between routers R1 and R6. There is a VPN service running between routers R1 and R6. Which of the following is TRUE?

    A. Router R4 swaps both the RSVP-TE LSP label and LDP transport label received with new labels,

    B. Router R4 swaps the VPN service label received with a new label.

    C. Router R4 uses the same RSVP-TE LSP label as the one received from router R3.

    D. Router R4 uses the same LDP transport label as the one received from router R3.

  • Question 114:

    All links have 1Gbps unreserved bandwidth initially and all LSPs have the least-fill feature enabled. After the two LSPs have been signaled as shown, two new LSPs are configured. LSP-3 is signaled first with 600Mbps reserved. LSP-4 is signaled after with 800Mbps reserved. All LSPs have the same setup and hold priorities. Which paths will CSPF choose for LSP-3 and LSP-4?

    A. LSP-3 takes R1-R3-R5-R6 and LSP-4 takes R1-R2-R4-R6.

    B. LSP-3 takes R1-R2-R4-R6 and LSP-4 takes R1-R3-R5-R6.

    C. LSP-3 takes R1-R3-R5-R6 and LSP-4 has no available path.

    D. LSP-3 takes R1-R2-R4-R6 and LSP-4 has no available path.

  • Question 115:

    Which of the following about LSPs is FALSE?

    A. IGP-based LSPs are calculated based on information contained in routing tables.

    B. Constraint-based LSPs are calculated using the head-end router's TED.

    C. Constraint-based LSPs must use RSVP-TE signaling.

    D. IGP-based LSPs must use LDP signaling.

  • Question 116:

    Click on the exhibit.

    All links have 1Gbps unreserved bandwidth initially and Shared Explicit reservation style is used. After the

    LSP's primary and standby secondary paths are signaled, how much unreserved bandwidth is left on the links?

    A. R1-R2 will have 300Mbps left and R2-R4 will have 400Mbps left.

    B. R1-R2 will have 400Mbps left and R2-R4 will have 400Mbps left.

    C. R1-R2 will have 600Mbps left and R2-R4 will have 600Mbps left.

    D. R1-R2 will have 300Mbps left and R2-R4 will have 600Mbps left.

  • Question 117:

    Which of the following is NOT required to configure an Alcatel-Lucent 7750 SR as a PE router running 6PE?

    A. Configure BGP with the IPv6 address family.

    B. Configure BGP to add IPv6 Explicit Null labels.

    C. Configure a route policy to export IPv6 routes into BGP.

    D. Configure the nexthop core router as a BGP peer.

  • Question 118:

    Which of the following describes constraint-based routing?

    A. A mechanism that implements opaque LSAs.

    B. A mechanism that computes routes based on specified requirements.

    C. A mechanism that ensures the IGP best route is used.

    D. A mechanism that enables LDP signaling to use a route other than the IGP best route.

  • Question 119:

    Which of the following about Link TLVs found inside Type 10 Opaque LSAs is FALSE?

    A. Link TLVs are used to advertise administrative group information.

    B. Link TLVs are exchanged once RSVP is enabled on the interfaces.

    C. Link TLVs are used to advertise router-IDs.

    D. Link TLVs are used to advertise bandwidth information.

  • Question 120:

    Click on the exhibit.

    Initially, all links along the path R1-R2-R4-R6 have 400Mbps unreserved bandwidth and all links along the path R1-R3-R5-R6 have 800Mbps unreserved bandwidth. Shared Explicit reservation style is used and Make-Before-Break is enabled. Both fully loose LSPs have been signaled as shown. Later, the configured bandwidth for LSP-1 is changed to 400Mbps. Which of the following is TRUE?

    A. After a new path for LSP-1 is established on R1-R3-R5-R6, the old path is torn down.

    B. After the old path for LSP-1 is torn down, the new path is established on R1-R3-R5-R6.

    C. LSP-1 will stay on R1-R2-R4-R6 because there is enough bandwidth on the existing path.

    D. LSP-1 will be torn down because CSPF fails to find a new path.

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