100% Pass Quiz 4A0-112 - Trustable Download Nokia IS-IS Routing Protocol Free Dumps

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Nokia 4A0-112 exam covers a wide range of topics related to IS-IS, including the protocol's operation, design considerations, and implementation best practices. Candidates are expected to have a deep understanding of IS-IS's routing principles, including its use of link-state advertisements (LSAs) and the differences between the Level 1 and Level 2 routing domains. They should also be familiar with Nokia's implementation of IS-IS, including the configuration of IS-IS on Nokia routers, the use of IS-IS metrics, and the implementation of IS-IS features such as route leaking and summarization.

As one of the most widely used routing protocols, IS-IS is a critical component in the field of networking. It is known for its ability to handle large-scale networks with multiple routers, making it a popular choice for service provider networks. The Nokia 4A0-112 Exam focuses on the core concepts of IS-IS, including its operation, configuration, and optimization.

Nokia 4A0-112 certification exam is a challenging exam that requires a lot of preparation and study. Nokia provides a comprehensive study guide and training courses to help candidates prepare for the exam. The study guide covers all the exam topics in detail and provides practice questions to help candidates test their knowledge.

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Nokia IS-IS Routing Protocol Sample Questions (Q15-Q20):

NEW QUESTION # 15
What is the replacement for ARP in IPv6?

A. Neighbor discovery procedures.
B. Stateless address auto-configuration procedures.
C. Duplicate address detection procedures.
D. Router discovery procedures.

Answer: A

Explanation:
In IPv6, the Neighbor Discovery Protocol (NDP) replaces the Address Resolution Protocol (ARP) used in IPv4. NDP is responsible for several functions, including resolving IP addresses to MAC addresses (similar to ARP), detecting duplicate IP addresses, and discovering other devices on the network.

NEW QUESTION # 16
Refer to the exhibit.

In the IS-IS network shown, router R1 has been configured to summarize subnetworks 20.20.1.0/24 and 20.20.2.0/24 as 20.20.0.0/16. Which routers' routing tables will be reduced, compared to their routing tables before the summarization?

A. Router R2
B. Routers R2 and R4
C. Router R1
D. Routers R1 and R2

Answer: A

Explanation:
Router R1 is the one that performs the summarization of the two subnets (20.20.1.0/24 and 20.20.2.0/24) into the summarized route 20.20.0.0/16. However, R1 itself will not see any change in its routing table because it is directly connected to both subnets and already knows about them.
Router R2, which is in Area 49.0002, will benefit from this summarization because it previously had separate routes for both 20.20.1.0/24 and 20.20.2.0/24. After the summarization, R2 will only need to maintain a single route to 20.20.0.0/16, reducing the size of its routing table.
Router R4 does not directly benefit from the summarization because it is only connected to the Level 1 network and has no need for the summarized routes from R1. Thus, the summarization does not affect R4's routing table.

NEW QUESTION # 17
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-R7-R4-R3). Router R3 to router R6 will follow (R3-R4-R7-R5-R6).
B. Router R6 to router R3 will follow (R6-R5-R2-R3). Router R3 to router R6 will follow (R3-R4-R2-R5-R6).
C. Router R6 to router R3 will follow (R6-R5-R2-R3). Router R3 to router R6 will follow (R3-R4-R7-R5-R6).
D. Router R6 to router R3 will follow (R6-R5-R2-R3). Router R3 to router R6 will follow (R3-R2-R5-R6).

Answer: D

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 # 18
Which of the following statements about IS-IS is FALSE?

A. A router becomes level-2 when it is associated with the backbone area.
B. In IS-IS, routers are associated with an area, not the interfaces.
C. A level-1 router forwards traffic to other areas through the nearest I eve I-1/1 eve I-2 router.
D. IS-IS uses the concept of level-1 and level-2 routers to implement hierarchy.

Answer: B

Explanation:
In IS-IS, routers are actually associated with interfaces rather than the entire router being associated with a single area. A router can have interfaces in multiple areas, and it is the interface's configuration that determines which area it belongs to.

NEW QUESTION # 19
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. Route leaking is configured on router R1 but not on router R2.
B. There is no route leaking configured on router R1 or router R2.
C. Route leaking is configured on router R2 but not on router R1.
D. Route leaking is configured on both routers R1 and R2.

Answer: D

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 # 20
......

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100% Pass Quiz 4A0-112 - Trustable Download Nokia IS-IS Routing Protocol Free Dumps

Download 4A0-112 Free Dumps | Latest Nokia Latest 4A0-112 Exam Review: Nokia IS-IS Routing Protocol

Nokia IS-IS Routing Protocol Sample Questions (Q15-Q20):

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