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Nokia 4A0-112 Exam Practice Test To Gain Brilliante Result

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Nokia 4A0-112 exam focuses on the Nokia IS-IS (Intermediate System to Intermediate System) routing protocol. This protocol is widely used in large-scale networks, such as service provider networks, due to its ability to handle large amounts of traffic and provide efficient routing. 4A0-112 exam covers topics such as configuring and troubleshooting IS-IS, understanding the different IS-IS protocols and their functions, and analyzing IS-IS metrics.

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.

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Nokia 4A0-112 Certification Exam is an excellent opportunity for network professionals to validate their skills and knowledge in the IS-IS routing protocol and its various features. Nokia IS-IS Routing Protocol certification demonstrates the candidates' ability to work with Nokia service routers and their proficiency in configuring, implementing, and troubleshooting the IS-IS protocol. The Nokia IS-IS Routing Protocol certification is recognized worldwide and is highly valued by employers, making it a valuable investment for network professionals looking to advance their careers.

Nokia IS-IS Routing Protocol Sample Questions (Q37-Q42):

NEW QUESTION # 37
Which of the following is NOT a required configuration step to successfully run IS-IS on a router?

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

Answer: C

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 # 38
Refer to the exhibit.

All routers in the diagram are running a link-state routing protocol. Before the link failure, all routers have operational adjacencies with each other and there is a BFD session between routers R1 and R3. After the link failure, which of the following affects the routing protocol's convergence time?

A. The value of the routing protocol hello timers on routers R1 and R3.
B. The value of the Ethernet hello timers on the switches.
C. The value of the BFD transmit interval, receive interval and multiplier settings on routers R1 and R3.
D. The time taken by the switches to detect that the physical ports are down.

Answer: C

Explanation:
BFD (Bidirectional Forwarding Detection) is used to detect link failures quickly and helps improve convergence time in link-state routing protocols. The BFD session between routers R1 and R3 allows them to detect the failure of the link between them more quickly than the regular routing protocol hello timers. The transmit interval, receive interval, and multiplier settings determine how fast BFD detects a failure and triggers the routing protocol to converge, which directly impacts the convergence time.

NEW QUESTION # 39
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-R5-R3-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-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 # 40
Two IS-IS routers are exchanging Hello packets. One is configured to use authentication and the other is not. Which of the following statements is TRUE?

A. An adjacency will be established with authentication using the default parameters defined for IS-IS routers.
B. An adjacency will be established without authentication.
C. An adjacency will not be established.
D. The two routers will negotiate the authentication parameters and the establish an adjacency.

Answer: C

Explanation:
IS-IS routers must have matching authentication settings to establish an adjacency. If one router is configured with authentication and the other is not, the routers will not be able to establish an adjacency because their authentication parameters do not match.

NEW QUESTION # 41
Refer to the exhibit.

Which of the following statements best describes the IS-IS domain to which the command output corresponds?

A. Single-area IS-IS domain with no broadcast interfaces.
B. Multi-area IS-IS domain with broadcast interfaces.
C. Single-area IS-IS domain with broadcast interfaces.
D. Multi-area IS-IS domain with no broadcast interfaces.

Answer: B

Explanation:
The output shows two levels of IS-IS databases: Level 1 (L1) and Level 2 (L2). This indicates that the domain is multi-area, as L1 routers are confined to a single area, while L2 routers can route between different areas. The presence of Level 1/Level 2 (L1/L2) routers also suggests that the domain spans multiple areas.
The LSP (Link-State PDU) entries show L1/L2 ATT attributes, which typically indicate that these routers are capable of routing both within their own area (Level 1) and across areas (Level 2), suggesting a multi-area design.
The IS-IS domain likely includes broadcast interfaces, as indicated by the "ATT" attribute (typically referring to the type of interface) and common IS-IS configuration practices on broadcast networks like Ethernet.

NEW QUESTION # 42
......

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