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Nokia 4A0-112 Exam is a comprehensive certification that covers a wide range of topics related to the IS-IS routing protocol. Some of these topics include the IS-IS routing algorithm, network topology, IS-IS configuration options, and troubleshooting techniques. Candidates who pass the exam can demonstrate their ability to manage complex networks using IS-IS, and are more likely to be sought after by organizations looking for qualified network administrators.
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IS-IS is a popular routing protocol used in service provider networks, and it is designed to operate in large-scale networks. The protocol is used to exchange routing information between routers and to determine the best path for packet forwarding. The Nokia 4A0-112 Certification Exam provides a comprehensive assessment of an individual's understanding of the IS-IS protocol and their ability to configure and troubleshoot it in real-world scenarios.
NEW QUESTION # 26
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?
Answer: B
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 # 27
Which component of the Nokia 7750 SR is in charge of performing the longest prefix match lookup on packets that arrive on the physical interfaces?
Answer: A
Explanation:
The Input/Output Module (IOM) is responsible for performing the longest prefix match (LPM) lookup on packets that arrive at the physical interfaces. The IOM performs this function by examining the destination IP address of incoming packets and using the routing table to determine the best match.
NEW QUESTION # 28
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?
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 # 29
A routing domain uses a link-state routing protocol. Which of the following would NOT be an advantage of dividing the entire routing domain into areas?
Answer: C
Explanation:
Dividing a domain into areas typically does not reduce the number of routers needed to handle traffic. It is more focused on improving scalability, reducing the size of routing tables, and limiting the scope of SPF calculations, but it doesn't inherently reduce the number of routers required.
NEW QUESTION # 30
A routing domain is using a single-area link-state routing protocol. Which of the following is NOT information that a router can share with other routers in the domain using protocol-specific messages?
Answer: C
Explanation:
In a single-area link-state routing protocol (such as OSPF), routers share specific information about the network topology, not their entire routing table. They exchange link-state advertisements (LSAs) that contain information about their directly connected interfaces and their state, allowing other routers to build a consistent view of the network.
NEW QUESTION # 31
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