NOKIA 4A0-112 EXAM DISCOUNT VOUCHER | 4A0-112 DETAIL EXPLANATION

Nokia 4A0-112 Exam Discount Voucher | 4A0-112 Detail Explanation

Nokia 4A0-112 Exam Discount Voucher | 4A0-112 Detail Explanation

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Nokia IS-IS Routing Protocol is widely used in large-scale service provider networks and is a critical component of many enterprise networks. Professionals who hold the Nokia 4A0-112 certification are equipped with the necessary skills and knowledge to design, implement, and troubleshoot complex networks that use the IS-IS routing protocol. Additionally, this certification demonstrates a high level of expertise in the field of networking and can lead to career advancement opportunities, better job prospects, and higher salaries.

Nokia 4A0-112 Exam is suitable for network professionals who are responsible for designing, deploying, and maintaining large-scale networks using Nokia service routers. 4A0-112 exam covers a wide range of topics, including the IS-IS protocol basics, its operation and configuration, network design and optimization, and troubleshooting. 4A0-112 exam is an industry-standard certification that demonstrates the candidates' expertise in the IS-IS routing protocol and their ability to work with Nokia service routers.

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4A0-112 Detail Explanation, 4A0-112 Updated CBT

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Nokia 4A0-112 Certification Exam is an excellent opportunity to deepen your knowledge of network routing protocols and take your career to the next level. With the demand for network professionals on the rise, becoming certified in IS-IS is an investment in your future that can pay dividends for years to come.

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

NEW QUESTION # 34
Which of the following definitions best describes route redistribution?

  • A. It is the process of passing routing information from one routing domain to another, which usually means from one routing protocol to another.
  • B. 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.
  • C. 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.
  • D. It is the process of deciding at line-rate speed which packets will be dropped and which ones will be forwarded.

Answer: A

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 # 35
A router running a link-state routing protocol detects that one of its neighbors is no longer connected to it. The router generates a new link-state advertisement to inform other routers of the topology change. Which of the following is NOT an action that is triggered by this event?

  • A. If a router receives multiple copies of the new link-state advertisement, it will simply ignore all copies received after the first one.
  • B. If a router receives the new link-state advertisement, it acknowledges it, stores it, and forwards it to its own neighbors.
  • C. Every router that receives the new link-state advertisement runs the SPF algorithm to recalculate its shortest-path tree and its forwarding database.
  • D. Every router that receives the new link-state advertisement updates its age field before forwarding it.

Answer: D

Explanation:
When a router receives a link-state advertisement (LSA), it does not update the age field before forwarding it. The age field in an LSA is typically updated by the originating router or during the process of forwarding the LSA within the network. Routers do not modify the age field upon receiving and forwarding an LSA.


NEW QUESTION # 36
Refer to the exhibit.

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

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

Answer: D

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 # 37
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

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 # 38
Which of the following statements about IS-IS is FALSE?

  • A. A level-1 router forwards traffic to other areas through the nearest I eve I-1/1 eve I-2 router.
  • B. IS-IS uses the concept of level-1 and level-2 routers to implement hierarchy.
  • C. A router becomes level-2 when it is associated with the backbone area.
  • D. In IS-IS, routers are associated with an area, not the interfaces.

Answer: D

Explanation:
In IS-IS, routers are actually associated with interfaces rather than the entire router being associated with a single area. A router can have interfaces in multiple areas, and it is the interface's configuration that determines which area it belongs to.


NEW QUESTION # 39
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