Realistic Valid 4A0-112 Test Questions - Nokia IS-IS Routing Protocol Passguide Pass Guaranteed

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Nokia 4A0-112 exam is a certification test that focuses on the Nokia IS-IS routing protocol. This protocol is commonly used in large networks, such as those found in service provider environments. 4A0-112 Exam is designed to test the candidate's knowledge and skills in implementing, configuring, and troubleshooting IS-IS networks using Nokia equipment.

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Nokia 4A0-112 (Nokia IS-IS Routing Protocol) Exam is designed to test candidates' knowledge and understanding of the InterDomain Routing Protocol (IDRP) and Internet Engineering Task Force (IETF) standards-based Interior Gateway Protocol (IGP), Intermediate System-to-Intermediate System (IS-IS) routing protocol. Nokia's IS-IS routing protocol enables the scalable and efficient routing of network traffic through a hierarchical network infrastructure. As such, it is used extensively in large enterprise and service provider networks.

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

NEW QUESTION # 34
Which of the following statements about router interfaces on a Nokia 7750 SR is FALSE?

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

Answer: A

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 # 35
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. The multicast MAC addresses to which the Hello messages are sent are different on broadcast interfaces and on point-to-point interfaces.
B. 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.
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. Broadcast Hello messages identify the elected designed IS (DIS) and point-to-point Hello messages do not.

Answer: C

Explanation:
In both broadcast and point-to-point interfaces, IS-IS routers identify neighbors using system IDs, not interface MAC addresses. The system ID is a unique identifier assigned to each router, and it is used to identify neighbors in both types of interfaces.

NEW QUESTION # 36
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. Installing two entries in the FIB for IP prefixes, one active and one in standby mode.
B. Calculating the shortest-path next hop for each known IP prefix.
C. Enabling the router to locally repair the active path to an IP prefix in case of failure.
D. 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.

Answer: B

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

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
Which of the following statements regarding the databases used by a link-state routing protocol in a single-are routing domain is FALSE?

A. The link-state database is the same for all routers.
B. The link-state database has the local topology and IP reachability information advertised by all the routers.
C. The adjacency database contains information about all the links interconnecting the domain's routers.
D. The forwarding database contains the optimum next hop for each known prefix.

Answer: C

Explanation:
The adjacency database contains information about the state of the router's adjacencies (i.e., the routers that it is directly connected to and has established a neighbor relationship with). It does not store information about all links in the domain; that information is stored in the link-state database.

NEW QUESTION # 39
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