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Nokia 4A0-112 valid & 4A0-112 exam torrent & 4A0-112 book torrent

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Nokia IS-IS routing protocol is a widely used protocol that is used in large-scale network environments. The protocol is designed to provide efficient and scalable routing for large networks, such as internet service provider (ISP) networks, backbone networks, and data center networks. The Nokia IS-IS routing protocol is known for its high scalability, fast convergence, and efficient use of network resources. It is also highly reliable and resilient, making it an ideal choice for mission-critical network environments.

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Nokia 4A0-112 Exam is a computer-based test that consists of multiple-choice questions. You will have a set amount of time to complete the exam, so it is important to manage your time effectively and pace yourself throughout the test. You will receive your results immediately after completing the exam, and if you pass, you will earn the Nokia IS-IS Routing Protocol certification.

Nokia IS-IS Routing Protocol Sample Questions (Q29-Q34):

NEW QUESTION # 29
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 sends back a copy of the LSP from its database to its neighbor.
C. The router updates its database with the LSP and floods a copy to its neighbors on other interfaces.
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 # 30
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-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-R4-R2-R1).
D. Router R1 to router R7 will follow (R1-R2-R4-R6-R7). Router R7 to router R1 will follow (R7-R6-R5-R3-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 # 31
Which of the following is NOT a function of the control plane a router?

A. To establish routing paths to deliver packets from source to destination and to reestablish them in case of failure.
B. To determine the best way to forward packets.
C. To exchange signaling messages with other routers.
D. To utilize the forwarding tables to forward data packets towards their destination.

Answer: D

Explanation:
The data plane (or forwarding plane) is responsible for actually forwarding the data packets. It uses the information stored in the forwarding table to determine how to move packets from one interface to another toward their destination.

NEW QUESTION # 32
Which of the following is NOT a required configuration step to successfully run IS-IS on a router?

A. A reference bandwidth needs to be configured to calculate link costs.
B. The router needs to be associated with an IS-IS area ID.
C. Layer-3 interfaces that will participate in IS-IS need to be identified.
D. The IS-IS context needs to be enabled.

Answer: A

Explanation:
While configuring a reference bandwidth (which is used to calculate link costs) can be useful, it is not strictly required for IS-IS to run. IS-IS uses default bandwidth values to calculate costs, and it can function without explicitly configuring a reference bandwidth.

NEW QUESTION # 33
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 R6 to router R3, and from router R3 to router R6?

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

Answer: C

Explanation:
The metric values between the routers dictate the routing paths, and IS-IS will calculate the shortest path based on these values.
R6 to R3: The path from R6 to R3 will go through R5 and R2, as this route has the least cumulative metric (10 + 10 + 15 = 35).
R3 to R6: The reverse path from R3 to R6 will follow R3 → R2 → R5 → R6 because this route is also the shortest with a total metric of 10 + 10 + 10 = 30.

NEW QUESTION # 34
......

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