4A0-112 OFFICIAL PRACTICE TEST, VALID EXAM 4A0-112 VCE FREE

4A0-112 Official Practice Test, Valid Exam 4A0-112 Vce Free

4A0-112 Official Practice Test, Valid Exam 4A0-112 Vce Free

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Tags: 4A0-112 Official Practice Test, Valid Exam 4A0-112 Vce Free, 4A0-112 Reliable Test Labs, 4A0-112 Exam Simulator Online, New 4A0-112 Real Exam

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Nokia 4A0-112 certification exam is a challenging exam that requires candidates to be well-prepared. Candidates need to understand the exam format, the type of questions asked, and the time allotted for each section. 4A0-112 exam consists of multiple-choice questions, and candidates are given two hours to complete the exam. The passing score for the exam is 80%, and candidates who pass the exam receive the Nokia 4A0-112 certification.

Nokia 4A0-112 Certification is beneficial for network professionals who work with Nokia's SRA platform and want to enhance their skills and knowledge in routing protocols. Nokia IS-IS Routing Protocol certification demonstrates the candidate's proficiency in implementing and configuring the IS-IS protocol in a Nokia network. It also validates the candidate's ability to troubleshoot and maintain the protocol in a production environment.

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Nokia IS-IS Routing Protocol Sample Questions (Q20-Q25):

NEW QUESTION # 20
Refer to the exhibit.

All routers in the diagram are running an interior gateway protocol (IGP) and have been configured with an ECMP value of 4. Router R5 advertises the prefix 192.168.3.0/24 using the IGP. Assuming all links have the same cost, how many entries for prefix 192.168.3.0/24 will be in router R3's routing table?

  • A. 0
  • B. 1
  • C. 2
  • D. 3

Answer: B

Explanation:
In this scenario, the routers are configured with an Equal-Cost Multi-Path (ECMP) value of 4, meaning they can utilize up to 4 equal-cost paths to reach a destination. Since Router R5 is advertising the 192.168.3.0/24 prefix and all links have the same cost, router R3 will receive multiple routes to reach this destination.
Given that all the routers (R1, R2, R3, R4, and R5) are connected in a way that can support multiple equal-cost paths, and assuming ECMP is set to 4, the routing table on Router R3 will have up to 4 entries for the prefix 192.168.3.0/24.
Thus, Router R3's routing table will contain 4 entries for the prefix 192.168.3.0/24.


NEW QUESTION # 21
Which of the following statements about router interfaces on a Nokia 7750 SR is FALSE?

  • A. They can be assigned IPv4 and/or IPv6 addresses.
  • B. They can be used in pairs on the same subnet for redundancy.
  • C. The system interface exists by default.
  • D. They can be logical or physical.

Answer: B

Explanation:
Typically, interfaces on a Nokia 7750 SR router are not configured in pairs on the same subnet for redundancy. Instead, redundancy is achieved through mechanisms like Virtual Router Redundancy Protocol (VRRP) or other high availability protocols, not by simply using interfaces in pairs on the same subnet.


NEW QUESTION # 22
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-R2-R4-R6-R7). Router R7 to router R1 will follow (R7-R6-R5-R3-R1).
  • B. Router R1 to router R7 will follow (R1-R2-R4-R6-R7). Router R7 to router R1 will follow (R7-R6-R4-R2-R1).
  • C. Router R1 to router R7 will follow (R1-R3-R5-R6-R7). Router R7 to router R1 will follow (R7-R6-R5-R3-R1).
  • D. Router R1 to router R7 will follow (R1-R3-R5-R6-R7). Router R7 to router R1 will follow (R7-R6-R4-R2-R1).

Answer: B

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 # 23
When multiple routing protocols offer a route for the same prefix, what part of the router is in charge of deciding which route to make active?

  • A. The routing information base (RIB)
  • B. The equal cost multipath configuration
  • C. The forwarding information base (FIB)
  • D. The routing table manager (RTM)

Answer: D

Explanation:
The routing table manager (RTM) is responsible for selecting the best route when multiple routing protocols provide a route for the same destination prefix. It makes the decision on which route to add to the routing table based on the administrative distance, metric, and other criteria.


NEW QUESTION # 24
On a broadcast interface, an IS-IS router receives an LSP that is newer than the one on its database. Which of the following statements best describes the actions taken by the router as a consequence?

  • A. The router updates its database with the LSP and acknowledges it with a PSNP.
  • B. The router updates its database with the LSP and floods a copy to its neighbors on other interfaces.
  • C. The router sends back a copy of the LSP from its database to its neighbor.
  • D. The router updated its database with the LSP, acknowledges the LSP with a PSNP, and floods a copy to its neighbors on other interfaces.

Answer: D

Explanation:
When an IS-IS router receives a newer LSP (Link-State PDU) than the one already in its database, it takes the following actions:
Updates its link-state database with the new LSP.
Acknowledges the LSP with a PSNP (Partial Sequence Number PDU), which is sent to the router that originated the LSP, confirming the receipt of the newer LSP.
Floods a copy of the updated LSP to its neighbors on other interfaces to ensure all routers in the network have the updated topology information.


NEW QUESTION # 25
......

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