Nokia 4A0-112 practice materials Questions Answers

Exam Code:
4A0-112
Exam Name:
Nokia IS-IS Routing Protocol Exam
Last Update:
Jun 01,2026

40 Questions Answers Verified by Experts!


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Nokia 4A0-112 Questions for Nokia Network Routing Specialist II Certification Exam 2026

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Page: 1 / 8
Total Questions: 40

Questions & Answers PDF

• Question 1

  

  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?

  • Control Processing Module (CMP)
  • Media Dependent Adapter (MDA)
  • Switch Fabric (SF)
  • Input/Output Module (IOM)

  Reveal Answer Answer: D Next Question

• Question 2

  

  What do the address resolution protocol (ARP) for IPv4 and the neighbor discovery procedures for IPv6 have in common?

  • Both detect duplicate MAC address assignments.
  • Both detect duplicate IP address assignments.
  • Both resolve a host device's MAC address using its IP address.
  • Both resolve a host device's IP address using its MAC address.

  Reveal Answer Answer: C Next Question

• Question 3

  

  When a router performs the SPF calculation, which router is used as the root of the shortest path tree?

  • The router with the fewest links.
  • The router with the lowest router ID.
  • The router's closest neighbor.
  • The router doing the calculation.

  Reveal Answer Answer: D Next Question

• Question 4

  

  Which of the following is a valid alternative representation of the IPv6 address 2001:0da8:0000:0000:0024:0000:4ab9:0300?

  • 2001:0da8::0024:0000:4ab9:03
  • 2001:da8::0:24::4ab9:300
  • 2001:da8::24::4ab9:300
  • 2001:da8::24:0:4ab9:300

  Reveal Answer Answer: A Next Question

• Question 5

  

  Which of the following statements about router interfaces on a Nokia 7750 SR is FALSE?

  • They can be used in pairs on the same subnet for redundancy.
  • They can be assigned IPv4 and/or IPv6 addresses.
  • They can be logical or physical.
  • The system interface exists by default.

  Reveal Answer Answer: A Next Question

• Question 6

  

  Which of the following is NOT a function of the control plane a router?

  • To exchange signaling messages with other routers.
  • To determine the best way to forward packets.
  • To establish routing paths to deliver packets from source to destination and to reestablish them in case of failure.
  • To utilize the forwarding tables to forward data packets towards their destination.

  Reveal Answer Answer: D Next Question

• Question 7

  

  Which of the following statements about the IP forwarding process on a router is TRUE?

  • It uses the routing table to find a match for the source IP address.
  • It uses the routing table to find a match for the destination IP address.
  • It uses the ARP table to find a match for the source MAC address.
  • It uses the ARP table to find a match for the destination MAC address.

  Reveal Answer Answer: B Next Question

• Question 8

  

  An IS-IS router receives a CSNP that references an older LSP than the one in its local database. What action is taken?

  • The router sends a copy of the referenced LSP from its database to its neighbor.
  • The router sends a CSNP to its neighbor describing the newer LSPs in its database.
  • The router updates its database with the new sequence number and floods a copy of the LSP to its other neighbors.
  • The router sends a PSNP to its neighbor to request a copy of the LSP.

  Reveal Answer Answer: A Next Question

• Question 9

  

  When using IS-IS in native mode for routing in a dual-stack IPv4/IPv6 environment, which of the following statements is FALSE?

  • All links are assumed to be IPv4- and IPv6-capable.
  • The same topology information is used to calculate the shortest path tree for both IPv4 and IPv6.
  • In a multi-area environment, the SPF algorithm needs to be run four times on each L1/L2 router.
  • It may lead to traffic black-holing if not properly designed.

  Reveal Answer Answer: C Next Question

• Question 10

  

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

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

  Reveal Answer Answer: C Next Question

Page: 1 / 8
Total Questions: 40

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