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It Contains a pool of real Nokia 4A0-116 exam questions. This 4A0-116 Nokia Segment Routing Exam practice test is compatible with every windows-based system. One downloaded does not require an active internet connection to operate. You can self-evaluate your mistakes after each 4A0-116 Practice Exam attempt and work on the weak points that require more attention.

Nokia 4A0-116 Exam Syllabus Topics:

Nokia Segment Routing Exam Sample Questions (Q25-Q30):

NEW QUESTION # 25
Which of the following statements about Multi-Protocol Label Switching networks is FALSE?

• A. The data is transparently carried from end to end.
• B. An LSP is a bi-directional tunnel that uses MPLS labels to forward data.
• C. An LSR forwards data based on the MPLS labels.
• D. MPLS uses a signaling protocol to exchange labels between routers.

Answer: A

Explanation:
The data is transparently carried from end to end: This statement is not true, MPLS does not provide data transparency, which means that the data is not carried unmodified from end to end. MPLS uses labels to forward data, so the original IP packets are encapsulated in new MPLS packets, and the original IP headers are not visible at the egress LSR.

NEW QUESTION # 26
Based on the exhibit, and given that the system IP address of router RIO is 10.10.10.10, which of the following statements is FALSE?

• A. Router Rl participates in at least two flex-algo instances.
• B. The underlying routing protocol being used in the network for segment routing is IS-IS.
• C. The Node-SID assigned to router RIO for flex-algo instance 129 is 524338.
• D. Router RIO participates in flex-algo instance 130.

Answer: C

NEW QUESTION # 27
Which of the following statements about a Segment Routing SID is FALSE?

• A. A Prefix-SID can be configured directly as a label value or indirectly as an index.
• B. Adjacency-SID values are taken from the SRGB configured for the routing protocol.
• C. A Node-SID is usually associated with a router's system interface.
• D. An Adjacency-SID does not have to be configured.

Answer: D

Explanation:
An Adjacency-SID does not have to be configured: this statement is not true, An Adjacency-SID is associated with a neighbor router, it is used to identify an adjacency between two routers. An Adjacency-SID must be configured to identify the adjacency.

NEW QUESTION # 28
An SR-TE LSP with a path definition that includes router R4 as a loose hop and for which Seamless-BFD has been enabled is following the path shown in the exhibit. What happens after router R4 fails if the routers along the path follow the default behavior?

• A. The head end will continue forwarding traffic to the current next-hop indefinitely, and R2 will redirect the traffic to R3 after IGP reconvergence.
• B. The head end will continue forwarding traffic to the current next-hop indefinitely, which will be discarded at the point of failure.
• C. The head end will periodically try to calculate a new path at a rate defined by the resignal timer.
• D. The head end will periodically try to calculate a new path at a rate defined by the retry timer.

Answer: B

Explanation:
When an SR-TE LSP with Seamless-BFD enabled, the BFD sessions are established between the routers along the path to detect any failures quickly. If a failure happens in the path, the router will stop forwarding the traffic and send a BFD control packet to the head-end router. In this case, R4 failed, BFD sessions will detect the failure and send a message to the head-end router, but since R4 is a loose hop, the path doesn't have to be re-calculate. The head-end router will continue forwarding traffic to the current next-hop, R2, which will be discarded at the point of failure (R4) as it doesn't know about the failure. And the traffic will not be redirected to R3 after IGP reconvergence.

NEW QUESTION # 29
Based on the configuration shown for routers R1 and R10, what valid flex-algo definitions exist in the network?

• A. No valid flex-algo definitions, because of the conflicting parameters.
• B. One valid flex-algo definition, using delay as the link metric and including green links.
• C. One valid flex-algo definition, using te-metric as the link metric and including blue links.
• D. Two valid flex-algo definitions, one uses te-metric as the link metric and includes blue links and the other uses delay as the link met includes green links.

Answer: D

NEW QUESTION # 30
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