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Nokia 4A0-C01 Exam Questions
Nokia NRS II Composite Exam (Page 2 )

Updated On: 19-Apr-2026
Page 2 of 170
PDF with 852 Questions

Which of the following statements regarding OSPF routing updates on a multi-access network segment is true?

  1. In multi-access networks, a DR and BDR are elected only if there are more than two routers connected to the network segment.
  2. In multi-access networks, a DR and BDR are elected only if the subnet masks on the router interfaces are less than /30
  3. In multi-access networks, a DR and BDR are elected. To ensure resiliency, both the DR and BDR send link-state advertisements describing the network.
  4. In multi-access networks, a DR and BDR are elected. The DR sends link-state advertisements describing the network.

Answer(s): D



Click the exhibit button

The 192 168 3.0/24 network is learned on router R1 via IS-IS Given the OSPF configuration shown, and assuming that the OSPF adjacency between routers R1 and R3 is up, why is the 192 168.3.0/24 route not in router R3's route table? (Choose two)

  1. The route policy should be applied as in import policy
  2. The no-redistribute-external command is used on router R1
  3. The route policy is incorrect. It should say "from protocol ISIS" rather than "from protocol direct".
  4. It is not possible to be an ASBRA. The ASBR configuration should be removed.
  5. The interface between routers R1 and R3 needs to be in OSPF area 0 rather than OSPF area 1 because a backbone area must always exist.

Answer(s): B,C



Click the exhibit button.

In the topology shown, router R1 is an ASBR configured to export external routes to OSPF. How many type 4 LSAs will be present in the network?

  1. One.
  2. One for each of the routers in area 0
  3. One for each of the external routes exported by router R1.
  4. Type 4 LSAs are not generated in this network topology.

Answer(s): D



When a router receives an IP packet, but does not find a match in the routing table for the destination IP address, what actions are performed by the router?

  1. The packet is flooded out all router interfaces.
  2. The packet is dropped and an ICMP unreachable message is sent back to the source.
  3. The packet is silently discarded.
  4. The packet is flooded out all interfaces and an ICMP unreachable message is sent.

Answer(s): B



How are LSPs acknowledged on IS-IS broadcast links?

  1. The LSP is acknowledged by sending a PSNP PDU.
  2. The LSP is acknowledged by sending an LSP PDU.
  3. The LSP is acknowledged by sending a Hello PDU.
  4. LSP are not acknowledged on broadcast links. The DIS sends periodic CSNPs to maintain database synchronization

Answer(s): D



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