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4A0-112 Positive Feedback | Free 4A0-112 Updates

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Nokia 4A0-112 Certification Exam is a valuable certification for network professionals who want to advance their careers in the networking industry. Nokia IS-IS Routing Protocol certification demonstrates that the candidate has a deep understanding of the IS-IS protocol and its applications, which is a critical skill in service provider environments. Holding this certification can lead to new job opportunities and higher salaries.

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Nokia 4A0-112 exam focuses on the Nokia IS-IS routing protocol, which is an essential aspect of network routing. 4A0-112 exam aims to validate your skills and knowledge in configuring, monitoring, and troubleshooting the Nokia IS-IS routing protocol. Passing 4A0-112 Exam is essential for network engineers who want to design and manage complex networks using Nokia's networking solutions.

Nokia IS-IS Routing Protocol Sample Questions (Q13-Q18):

NEW QUESTION # 13
A router is trying to establish an IS-IS adjacency with the DIS on a broadcast link. What event causes the adjacency to change from "Initializing" to "UP"?

A. Receiving the first CSNP packet from the DIS that lists the LSPs in the DIS's link-state database.
B. Receiving the last LSP requested from the DIS.
C. Receiving a Hello packet from the DIS that contains the local router's own MAC address in the neighbor list.
D. Receiving a CSNP packet from the DIS acknowledging the last transmitted LSP.

Answer: A

Explanation:
The process of establishing an IS-IS adjacency on a broadcast link involves several steps, and the transition from the Initializing state to the UP state occurs when both routers exchange sufficient information to confirm they have a consistent view of the link-state database.
The CSNP (Complete Sequence Number PDU) packet is used to advertise the list of LSPs in the router's link-state database. When a router receives the first CSNP from the DIS (Designated Intermediate System) that lists the LSPs in the DIS's database, it indicates that the router has enough information to establish the adjacency and synchronize its database.

NEW QUESTION # 14
Which of the following statements about router interfaces on a Nokia 7750 SR is FALSE?

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

Answer: D

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 # 15
There are several differences between IS-IS Hello packets used on broadcast interfaces and on point-to-point interfaces.
Which of the following statements is FALSE?

A. Broadcast Hello messages identify the elected designed IS (DIS) and point-to-point Hello messages do not.
B. The multicast MAC addresses to which the Hello messages are sent are different on broadcast interfaces and on point-to-point interfaces.
C. The neighbors are identified using their interface MAC addresses on broadcast Hello messages and using their system IDs on point-to-point Hello messages.
D. On broadcast interfaces there are different Hello packet types for level-1 and level-2 adjacencies, whereas on point-to-point interfaces there is a single Hello packet type.

Answer: C

NEW QUESTION # 16
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?

A. Input/Output Module (IOM)
B. Switch Fabric (SF)
C. Control Processing Module (CMP)
D. Media Dependent Adapter (MDA)

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 # 17
When a router performs the SPF calculation, which router is used as the root of the shortest path tree?

A. The router's closest neighbor.
B. The router with the fewest links.
C. The router with the lowest router ID.
D. The router doing the calculation.

Answer: D

Explanation:
When a router performs the SPF (Shortest Path First) calculation, it uses itself as the root of the shortest path tree (SPT). This router computes the shortest paths to all other routers in the network, treating itself as the origin and calculating the paths based on its view of the network.

NEW QUESTION # 18
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