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The main key to passing the 4A0-112 exam is to use your time affectionately and grasp every topic so you can attempt the maximum number of questions in the actual 4A0-112 Exam. By studying the questions mentioned in the prep material, the candidates have control over the exam anxiety in no time.

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.

Nokia 4A0-112 certification exam is intended for network engineers, network architects, and network administrators who are responsible for designing, implementing, and maintaining network infrastructures that use the Nokia IS-IS routing protocol. 4A0-112 Exam is also suitable for professionals who want to enhance their knowledge and skills in routing protocols and improve their career prospects in the networking industry. Passing the Nokia 4A0-112 exam validates the candidate's expertise in the Nokia IS-IS routing protocol, which is widely used in Service Provider and Enterprise networks. It also demonstrates the candidate's commitment to professional development and continuous learning.

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Nokia IS-IS Routing Protocol Sample Questions (Q34-Q39):

NEW QUESTION # 34
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?

A. Less-capable routers can be isolated from having to keep track of IP prefixes that are external to the local routing domain.
B. Fewer routers are required to handle the same amount of traffic, as compared to a single-area domain.
C. Route tables can be reduced by summarizing the IP prefixes advertised between areas.
D. Detailed topology information is only shared among routers within the same area, thus reducing the complexity of the SPF calculation.

Answer: B

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 # 35
Two IS-IS neighboring routers are trying to establish an adjacency, but the interface has been configured as broadcast on one of them and as point-to-point on the other. Why is the adjacency not established?

A. The routers discard the received Hello messages because they are not the expected type: LAN Hello vs point-to-point Hello.
B. The routers do not receive each other's Hello messages because they listen for messages transmitted to different multicast MAC addresses.
C. The routers do not receive each other's Hello messages because they listen for messages transmitted to different multicast IP addresses.
D. The routers do not agree on the result of the DIS election.

Answer: A

Explanation:
IS-IS routers use different types of Hello messages depending on whether the interface is configured as a broadcast (LAN) or point-to-point (P2P) link.
On a broadcast network (e.g., Ethernet), IS-IS routers use LAN Hello packets to establish adjacencies.
On a point-to-point link, IS-IS uses point-to-point Hello packets.
If one router is configured for a broadcast interface and the other for point-to-point, they will exchange incompatible Hello packets, and as a result, neither router will accept the other's Hello messages, preventing the adjacency from being established.

NEW QUESTION # 36
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 BFD transmit interval, receive interval and multiplier settings on routers R1 and R3.
B. The value of the routing protocol hello timers on routers R1 and R3.
C. The value of the Ethernet hello timers on the switches.
D. The time taken by the switches to detect that the physical ports are down.

Answer: A

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 # 37
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. Control Processing Module (CMP)
C. Media Dependent Adapter (MDA)
D. Switch Fabric (SF)

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 # 38
A series of actions are triggered on a router as a result of enabling both loopfree-alternate for a link-state routing protocol and ip-fast-reroute. Which of the following is NOT one of those actions?

A. Calculating a backup next hop for each known IP prefix, if it exists, that would not create a routing loop if used without informing other routers.
B. Installing two entries in the FIB for IP prefixes, one active and one in standby mode.
C. Enabling the router to locally repair the active path to an IP prefix in case of failure.
D. Calculating the shortest-path next hop for each known IP prefix.

Answer: D

NEW QUESTION # 39
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Nokia IS-IS Routing Protocol Sample Questions (Q34-Q39):

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