Free Nokia 4A0-103 Practice Exam Questions and Answers 2026

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Total 249 Questions | Updated On: Apr 03, 2026

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Question 1

Click on the exhibit. 4-A0-103-page112-image36 Initially, all links along the path R1-R2-R4-R6 have 400Mbps unreserved bandwidth and all links along the pathR1-R3-R5-R6 have 800Mbps unreserved bandwidth. Shared Explicit reservation style is used and MakeBefore-Break is enabled. Both fully loose LSPs have been signaled as shown. Later, the configured bandwidthfor 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.

Answer: C

Question 2

Which of the following about Fast Reroute link protection tunnels is FALSE?

A : Link protection tunnels are established if a router is unable to establish node protection tunnels.

B : Link protection tunnels are only requested for a primary LSP path.

C : Link protection tunnels can be created for both one-to-one or facility Fast Reroute.

D : Link protection tunnels detour around a failed next downstream router.

Answer: D

Question 3

Which of the following is TRUE when the explicit null is implemented?

A : The penultimate router will forward packets to the eLER, based on the IP header.

B : The eLER will receive packets with a top label value of 0.

C : The eLER will receive packets with a top label value of 3.

D : The penultimate router will pop the top label from the packets.

Answer: B

Question 4

A targeted-LDP session may exist between directly connected or non-directly connected devices

A : TRUE

B : FALSE

Answer: A

Question 5

Which of the following about RSVP-TE on an Alcatel-Lucent 7750 SR is TRUE?

A : Label bindings are distributed to other routers when explicitly requested.

B : Label bindings are distributed to all neighbors including non-downstream routers.

C : Label bindings are distributed if labels have not been received from downstream routers.

D : All labels received from downstream neighbors are stored in the LIB.

Answer: A

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Total 249 Questions | Updated On: Apr 03, 2026

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