4A0-116 by Nokia Valid Free Exam Practice Test

Question 1

Which of the following statements about the Path Computation Element (PCE) is FALSE?

A. A stateless PCE can calculate cross-area traffic-engineering-constrained LSP paths. B. A stateful PCE proactively monitors all the existing LSPs and triggers the necessary repairs and re-optimizations. C. The PCE can obtain topology and traffic-engineering information from the network using either a link-state IGP or BGP-LS. D. A stateful PCE can allow LSPs to reserve bandwidth.

Correct Answer: D

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Question 2

Which of the following is not required to be advertised by a router participating in Segment Routing?

A. Adjacency-SIDs B. SRGB when SRv6 is configured C. Local Node-SID D. Support for SR-MPLS for IPv4 or IPv6, or SRv6

Correct Answer: B

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Question 3

Which of the following statements about segment routing fast re-route is FALSE?

A. The parameter "max-sr-frr-labels" limits the number of labels that R-LFA can add to the data packet encapsulation. B. Fast re-route is a temporary fix that becomes active for a short period of time after a local network failure. C. On a Nokia 7750 SR, R-LFA and TI-LFA can be enabled independently of each other. D. Fast re-route typically protects the active segment of a tunnel, but under certain conditions it can protect an end-to-end multi-segment tunnel instead.

Correct Answer: C

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Question 4

Which of the following statements about SR-TE administrative constraints is FALSE?

A. The TE metric for a link is by default the same as the IGP metric. B. A strict hop must be adjacent to the previous hop in the list. C. The head-end router may calculate a path that takes into account max hop count and bandwidth constraints. D. Shared-Risk-Link Groups are only taken into account when calculating the secondary path.

Correct Answer: D

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Question 5

The exhibit presents packets being transmitted inside an LSP's multi-segment primary path going from router R1 to router R8. The LSP also has a standby secondary path, and Seamless-BFD has been enabled on the primary path. The link between routers R1 and R2 fails, and fast re-route (FRR) is triggered. As a result, router R1 forwards the packets to router R3 and adds the proper FRR encapsulation to reach which router?

A. To reach router R5, which is the shortest way to go back to the original path. B. To reach router R8, which is the tail-end of the LSP. C. To reach router R2, which is the LSP's intended next-hop. D. To reach router R4, which is the tail-end of the active segment.

Correct Answer: A

Nokia Segment Routing - 4A0-116 Exam Practice Test