TEST 4A0-112 ENGINE VERSION | 4A0-112 TEST DISCOUNT VOUCHER

Test 4A0-112 Engine Version | 4A0-112 Test Discount Voucher

Test 4A0-112 Engine Version | 4A0-112 Test Discount Voucher

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Tags: Test 4A0-112 Engine Version, 4A0-112 Test Discount Voucher, Latest 4A0-112 Braindumps Free, 4A0-112 Exam Cram, Exam 4A0-112 Answers

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Nokia 4A0-112 Certification Exam is an excellent way for IT professionals to demonstrate their expertise in the IS-IS routing protocol and Nokia's networking solutions. Nokia IS-IS Routing Protocol certification is highly respected in the industry and can open up new career opportunities for individuals who achieve it. If you are interested in pursuing this certification, be sure to invest in the necessary training and study resources to ensure your success on the exam.

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Nokia IS-IS Routing Protocol Sample Questions (Q12-Q17):

NEW QUESTION # 12
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 a Hello packet from the DIS that contains the local router's own MAC address in the neighbor list.
  • B. Receiving the first CSNP packet from the DIS that lists the LSPs in the DIS's link-state database.
  • C. Receiving the last LSP requested from the DIS.
  • D. Receiving a CSNP packet from the DIS acknowledging the last transmitted LSP.

Answer: B

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 # 13
Refer to the exhibit.

Routers R1 through R4 in the diagram have established IS-IS adjacencies. Router R1 is L1/L2 and is the DIS of its two broadcast interfaces. How many LSPs will it generate?

  • A. 0
  • B. 1
  • C. 2
  • D. 3

Answer: B

Explanation:
Router R1 is configured as L1/L2, meaning it is part of both Level 1 and Level 2 IS-IS routing areas. This means R1 will generate two types of LSPs:
Level 1 LSP (for the local area 49.0001) to advertise its local topology to other Level 1 routers.
Level 2 LSP (for the backbone area 49.0002) to advertise the global network topology to Level 2 routers.
R1 also has two broadcast interfaces, and as the Designated Intermediate System (DIS) on these interfaces, it will generate an LSP for each interface (one per broadcast link).
This results in three total LSPs:
A Level 1 LSP for the local area (49.0001).
A Level 2 LSP for the backbone area (49.0002).
An LSP for each of the two broadcast interfaces, which may include interface-related topology information.


NEW QUESTION # 14
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 adjacency database contains information about all the links interconnecting the domain's routers.
  • B. The link-state database is the same for all routers.
  • C. The link-state database has the local topology and IP reachability information advertised by all the routers.
  • D. The forwarding database contains the optimum next hop for each known prefix.

Answer: A

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 # 15
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. Route tables can be reduced by summarizing the IP prefixes advertised between areas.
  • B. Less-capable routers can be isolated from having to keep track of IP prefixes that are external to the local routing domain.
  • C. Detailed topology information is only shared among routers within the same area, thus reducing the complexity of the SPF calculation.
  • D. Fewer routers are required to handle the same amount of traffic, as compared to a single-area domain.

Answer: D

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 # 16
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 neighbors are identified using their interface MAC addresses on broadcast Hello messages and using their system IDs on point-to-point Hello messages.
  • B. Broadcast Hello messages identify the elected designed IS (DIS) and point-to-point Hello messages do not.
  • C. The multicast MAC addresses to which the Hello messages are sent are different on broadcast interfaces and on point-to-point interfaces.
  • 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: A

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 # 17
......

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