VALID 4A0-112 VALID DUMPS FREE FOR PASSING 4A0-112 EXAM PREPARATION

Valid 4A0-112 Valid Dumps Free for Passing 4A0-112 Exam Preparation

Valid 4A0-112 Valid Dumps Free for Passing 4A0-112 Exam Preparation

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Tags: 4A0-112 Valid Dumps Free, 4A0-112 Valid Test Pass4sure, 4A0-112 Exam Preview, 4A0-112 Reliable Exam Sample, VCE 4A0-112 Exam Simulator

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Nokia 4A0-112 exam is designed to test the proficiency of IT professionals in the implementation and configuration of the Nokia IS-IS Routing Protocol. The Nokia IS-IS Routing Protocol is a widely used protocol in the networking industry, and it is essential for the smooth functioning of large-scale networks. 4A0-112 exam focuses on various aspects of the protocol, including design, implementation, and troubleshooting.

IS-IS is a popular routing protocol used in service provider networks, and it is designed to operate in large-scale networks. The protocol is used to exchange routing information between routers and to determine the best path for packet forwarding. The Nokia 4A0-112 Certification Exam provides a comprehensive assessment of an individual's understanding of the IS-IS protocol and their ability to configure and troubleshoot it in real-world scenarios.

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Nokia IS-IS Routing Protocol Sample Questions (Q18-Q23):

NEW QUESTION # 18
Which of the following is NOT a required configuration step to successfully run IS-IS on a router?

  • A. The IS-IS context needs to be enabled.
  • B. The router needs to be associated with an IS-IS area ID.
  • C. Layer-3 interfaces that will participate in IS-IS need to be identified.
  • D. A reference bandwidth needs to be configured to calculate link costs.

Answer: D

Explanation:
While configuring a reference bandwidth (which is used to calculate link costs) can be useful, it is not strictly required for IS-IS to run. IS-IS uses default bandwidth values to calculate costs, and it can function without explicitly configuring a reference bandwidth.


NEW QUESTION # 19
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. 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.
  • 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. 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 # 20
What is the replacement for ARP in IPv6?

  • A. Router discovery procedures.
  • B. Neighbor discovery procedures.
  • C. Stateless address auto-configuration procedures.
  • D. Duplicate address detection procedures.

Answer: B

Explanation:
In IPv6, the Neighbor Discovery Protocol (NDP) replaces the Address Resolution Protocol (ARP) used in IPv4. NDP is responsible for several functions, including resolving IP addresses to MAC addresses (similar to ARP), detecting duplicate IP addresses, and discovering other devices on the network.


NEW QUESTION # 21
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 forwarding database contains the optimum next hop for each known prefix.
  • C. The link-state database has the local topology and IP reachability information advertised by all the routers.
  • D. The adjacency database contains information about all the links interconnecting the domain's routers.

Answer: D

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 # 22
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 the first CSNP packet from the DIS that lists the LSPs in the DIS's link-state database.
  • B. Receiving a CSNP packet from the DIS acknowledging the last transmitted LSP.
  • C. Receiving a Hello packet from the DIS that contains the local router's own MAC address in the neighbor list.
  • D. Receiving the last LSP requested from the DIS.

Answer: A

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 # 23
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