EXAM 4A0-112 REFERENCE & NEW 4A0-112 TEST SIMS

Exam 4A0-112 Reference & New 4A0-112 Test Sims

Exam 4A0-112 Reference & New 4A0-112 Test Sims

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Tags: Exam 4A0-112 Reference, New 4A0-112 Test Sims, Standard 4A0-112 Answers, Valid Test 4A0-112 Vce Free, 4A0-112 Test Questions Pdf

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New Nokia 4A0-112 Test Sims, Standard 4A0-112 Answers

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Nokia 4A0-112 exam is designed for professionals who are interested in obtaining the Nokia Service Routing Certification (SRC) in the field of Intermediate Routing. 4A0-112 exam validates the candidate's knowledge and skills in the intermediate level of the Nokia IS-IS Routing Protocol. 4A0-112 Exam measures the candidate's ability to configure, troubleshoot, and manage intermediate-level routing protocols in the Nokia Service Router.

Nokia IS-IS Routing Protocol Sample Questions (Q11-Q16):

NEW QUESTION # 11
A series of actions are triggered on a router as a result of enabling both loopfree-alternate for a link-state routing protocol and ip-fast-reroute. Which of the following is NOT one of those actions?

  • A. Enabling the router to locally repair the active path to an IP prefix in case of failure.
  • B. Installing two entries in the FIB for IP prefixes, one active and one in standby mode.
  • C. Calculating the shortest-path next hop for each known IP prefix.
  • D. Calculating a backup next hop for each known IP prefix, if it exists, that would not create a routing loop if used without informing other routers.

Answer: C


NEW QUESTION # 12
Consider the exhibit.

All routers are running IS-IS with IPv6 support enabled. Based on the topology shown, and the route tables of routers R3 and R4, which of the following statements is TRUE?

  • A. There is no route leaking configured on router R1 or router R2.
  • B. Route leaking is configured on both routers R1 and R2.
  • C. Route leaking is configured on router R1 but not on router R2.
  • D. Route leaking is configured on router R2 but not on router R1.

Answer: B

Explanation:
From the route tables of R3 and R4, we can see that remote routes are present, with R3 and R4 both having routes referencing routers in different areas (Area 49.01 and 49.02). These remote routes are characteristic of route leaking, which is the process of sharing routes between different IS-IS areas.
R3 has routes for R1, R2, and R4, which are in Area 49.01, suggesting that R1 and R2 have advertised their routes to R3, possibly due to route leaking.
R4 has similar routes for R2 and R3, indicating that R2 might have advertised its routes to R4.
This sharing of routes between areas is indicative of route leaking being configured on both R1 and R2, allowing these routes to be shared across the areas.


NEW QUESTION # 13
Which of the following statements about the IP forwarding process on a router is TRUE?

  • A. It uses the routing table to find a match for the source IP address.
  • B. It uses the ARP table to find a match for the destination MAC address.
  • C. It uses the routing table to find a match for the destination IP address.
  • D. It uses the ARP table to find a match for the source MAC address.

Answer: C

Explanation:
During the IP forwarding process, routers use the routing table to determine the next hop based on the destination IP address. The source IP address is not directly involved in the lookup process for forwarding.
The ARP table is used to map IP addresses to MAC addresses, specifically for resolving the MAC address of the next hop (destination MAC address) for forwarding packets within the local network.


NEW QUESTION # 14
Refer to the exhibit.

In the diagram, all routers are using IS-IS as their routing protocol. The number next to each link is its metric value.
What path will traffic follow from router R1 to router R7, and from router R7 to router R1?

  • A. Router R1 to router R7 will follow (R1-R3-R5-R6-R7). Router R7 to router R1 will follow (R7-R6-R4-R2-R1).
  • B. Router R1 to router R7 will follow (R1-R3-R5-R6-R7). Router R7 to router R1 will follow (R7-R6-R5-R3-R1).
  • C. Router R1 to router R7 will follow (R1-R2-R4-R6-R7). Router R7 to router R1 will follow (R7-R6-R5-R3-R1).
  • D. Router R1 to router R7 will follow (R1-R2-R4-R6-R7). Router R7 to router R1 will follow (R7-R6-R4-R2-R1).

Answer: D

Explanation:
From R1 to R7: The path will be R1 → R2 → R4 → R6 → R7 because this path has the least cumulative metric of 10 + 10 + 10 + 10 = 40.
From R7 to R1: The reverse path will follow R7 → R6 → R4 → R2 → R1 because it is the shortest return path with the same metrics.


NEW QUESTION # 15
Refer to the exhibit.

Routers R1, R2, R3, and R4 are running IS-IS. Assuming all interfaces are added to IS-IS as point-to-point and no commands are issued at the interface level to restrict adjacencies, which of the following statements is TRUE?

  • A. All four routers are L1/L2.
  • B. Routers R1 and R2 are L2 routers. Routers R3 and R4 are L1 routers.
  • C. Routers R1 and R2 are L1/L2 routers. Routers R3 and R4 are L1 routers.
  • D. Routers R1 and R2 are L2 routers. Routers R3 and R4 are L1/L2 routers.

Answer: C

Explanation:
From the output, we can see that the usage column indicates whether a router is operating as an L1 or L2 router:
The L1/L2 designations refer to whether the routers participate in both Level 1 and Level 2 of IS-IS:
In this case, R1 and R2 are L2 routers, and R3 and R4 are L1 routers.


NEW QUESTION # 16
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