100% PASS QUIZ 4A0-112 NOKIA IS-IS ROUTING PROTOCOL MARVELOUS VALID TEST TUTORIAL

100% Pass Quiz 4A0-112 Nokia IS-IS Routing Protocol Marvelous Valid Test Tutorial

100% Pass Quiz 4A0-112 Nokia IS-IS Routing Protocol Marvelous Valid Test Tutorial

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Tags: 4A0-112 Valid Test Tutorial, Regualer 4A0-112 Update, 4A0-112 Real Sheets, Exam 4A0-112 PDF, 4A0-112 Exam Dumps Free

This format is for candidates who do not have the time or energy to use a computer or laptop for preparation. The Nokia 4A0-112 PDF file includes real Nokia 4A0-112 questions, and they can be easily printed and studied at any time. 2Pass4sure regularly updates its PDF file to ensure that its readers have access to the updated questions.

Nokia IS-IS Routing Protocol is an industry-standard protocol used for routing in large-scale networks. It is often used in service provider networks, data centers, and enterprise networks. This protocol is known for its scalability, stability, and fast convergence. It is designed to support large networks with multiple levels of hierarchy, making it an ideal choice for complex network infrastructures.

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Nokia IS-IS Routing Protocol Sample Questions (Q26-Q31):

NEW QUESTION # 26
On a broadcast interface, an IS-IS router receives an LSP that is newer than the one on its database. Which of the following statements best describes the actions taken by the router as a consequence?

  • A. The router updates its database with the LSP and acknowledges it with a PSNP.
  • B. The router updates its database with the LSP and floods a copy to its neighbors on other interfaces.
  • C. The router updated its database with the LSP, acknowledges the LSP with a PSNP, and floods a copy to its neighbors on other interfaces.
  • D. The router sends back a copy of the LSP from its database to its neighbor.

Answer: C

Explanation:
When an IS-IS router receives a newer LSP (Link-State PDU) than the one already in its database, it takes the following actions:
Updates its link-state database with the new LSP.
Acknowledges the LSP with a PSNP (Partial Sequence Number PDU), which is sent to the router that originated the LSP, confirming the receipt of the newer LSP.
Floods a copy of the updated LSP to its neighbors on other interfaces to ensure all routers in the network have the updated topology information.


NEW QUESTION # 27
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. Less-capable routers can be isolated from having to keep track of IP prefixes that are external to the local routing domain.
  • B. Detailed topology information is only shared among routers within the same area, thus reducing the complexity of the SPF calculation.
  • C. Fewer routers are required to handle the same amount of traffic, as compared to a single-area domain.
  • D. Route tables can be reduced by summarizing the IP prefixes advertised between areas.

Answer: C

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 # 28
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. Control Processing Module (CMP)
  • B. Switch Fabric (SF)
  • C. Media Dependent Adapter (MDA)
  • D. Input/Output Module (IOM)

Answer: D

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 # 29
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 # 30
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 CSNP packet from the DIS acknowledging the last transmitted LSP.
  • 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 Hello packet from the DIS that contains the local router's own MAC address in the neighbor list.

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 # 31
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