FREE PDF 2025 4A0-112: HIGH-QUALITY NOKIA IS-IS ROUTING PROTOCOL VALID EXAM SAMPLE

Free PDF 2025 4A0-112: High-quality Nokia IS-IS Routing Protocol Valid Exam Sample

Free PDF 2025 4A0-112: High-quality Nokia IS-IS Routing Protocol Valid Exam Sample

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Tags: 4A0-112 Valid Exam Sample, 4A0-112 Exam Simulator Free, 4A0-112 Reliable Learning Materials, 4A0-112 Exam Torrent, Reliable 4A0-112 Test Blueprint

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Nokia 4A0-112 exam is a certification that focuses on the Nokia IS-IS Routing Protocol, which is a protocol that is used to support the routing of IP packets across the network. It is designed to provide scalability, efficiency, and stability while forwarding packets to their destination. 4A0-112 exam is intended for IT professionals who want to demonstrate their knowledge and skills in this protocol.

Nokia IS-IS routing protocol is a widely used protocol in the industry, and its popularity is increasing due to its scalability, robustness, and fast convergence times. It is commonly used in service provider networks, data center networks, and large enterprise networks. Therefore, the Nokia 4A0-112 certification exam is becoming increasingly important for network professionals who want to excel in their careers and stay up-to-date with the latest networking technologies.

To successfully pass the Nokia 4A0-112 Exam, candidates must demonstrate an excellent grasp of key concepts such as IS-IS routing domains, hierarchical network design, network convergence, link-state and distance-vector routing protocols and other routing protocol-specific features. Additionally, candidates must be able to configure, manage and troubleshoot IS-IS protocol implementations within complex network topologies across diverse routing domains. The Nokia 4A0-112 exam is a high-level certification that reaffirms the candidate's status as an expert in IS-IS routing protocol and network management.

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Nokia IS-IS Routing Protocol Sample Questions (Q37-Q42):

NEW QUESTION # 37
Which of the following definitions best describes route redistribution?

  • A. It is the process of deciding at line-rate speed which packets will be dropped and which ones will be forwarded.
  • B. It is the process of passing routing information from one routing domain to another, which usually means from one routing protocol to another.
  • C. It is the process of redirecting packets to be processed by an intermediate network function before allowing them to be forwarded to their intended final destination.
  • D. It is the process of controlling which route advertisements received from routing peers are accepted and/or deciding which locally known prefixes are advertised to routing peers.

Answer: B

Explanation:
Route redistribution is the process of sharing routing information between different routing protocols or routing domains. For example, a router might redistribute routes learned via OSPF into a BGP routing table or vice versa. This enables routers to exchange routing information even when they are using different routing protocols.


NEW QUESTION # 38
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-R2-R3). Router R3 to router R6 will follow (R3-R4-R2-R5-R6).
  • B. Router R6 to router R3 will follow (R6-R5-R2-R3). Router R3 to router R6 will follow (R3-R4-R7-R5-R6).
  • C. Router R6 to router R3 will follow (R6-R5-R7-R4-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 # 39
Refer to the exhibit.

Which of the following statements best describes the IS-IS domain to which the command output corresponds?

  • A. Multi-area IS-IS domain with no broadcast interfaces.
  • B. Multi-area IS-IS domain with broadcast interfaces.
  • C. Single-area IS-IS domain with no broadcast interfaces.
  • D. Single-area IS-IS domain with broadcast interfaces.

Answer: B

Explanation:
The output shows two levels of IS-IS databases: Level 1 (L1) and Level 2 (L2). This indicates that the domain is multi-area, as L1 routers are confined to a single area, while L2 routers can route between different areas. The presence of Level 1/Level 2 (L1/L2) routers also suggests that the domain spans multiple areas.
The LSP (Link-State PDU) entries show L1/L2 ATT attributes, which typically indicate that these routers are capable of routing both within their own area (Level 1) and across areas (Level 2), suggesting a multi-area design.
The IS-IS domain likely includes broadcast interfaces, as indicated by the "ATT" attribute (typically referring to the type of interface) and common IS-IS configuration practices on broadcast networks like Ethernet.


NEW QUESTION # 40
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 adjacency database contains information about all the links interconnecting the domain's routers.
  • C. The forwarding database contains the optimum next hop for each known prefix.
  • D. The link-state database has the local topology and IP reachability information advertised by all the routers.

Answer: B

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 # 41
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?

  • A. A copy of the local routing table.
  • B. IP prefixes known by the router because it is running ad additional routing protocol.
  • C. The local router ID and the router IDs of neighboring routers.
  • D. The IP prefixes of subnets directly attached to the router.

Answer: A

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 # 42
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