Free Nokia 4A0-C04 Practice Exam Questions and Answers 2026

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Total 300 Questions | Updated On: Apr 01, 2026

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Question 1

Which LSA type is used for OSPF-TE?

A : Type 8 LSA --- Link Local LSA

B : Type 9 LSA --- Link local Opaque LSA

C : Type 10 LSA --- Area local Opaque LSA

D : Type 11 LSA ---AS Opaque LSA

Answer: C

Question 2

NSSA LSA packets are what type within an NSSA area, and are converted to what other type at the ABR?

A : They are type 7 within the area and are not modified at the ABR

B : They are type 5 within the area and converted to type 3 at the ABR

C : They are type 5 within the area and are not modified at the ABR

D : They are type 7 within the area and converted to type 5 at the ABR

Answer: D

Question 3

Which of the following about transport and service tunnels is FALSE?

A : Service tunnels are unidirectional.

B : Transport tunnels are unidirectional.

C : A service will use the same service label for every hop.

D : A local service requires a transport tunnel.

Answer: D

Question 4

A router receives an OSPF database description packet from a neighbor that references an LSA, which is already in the router's LSDB. The sequence number in the DBD packet is lower than the sequence number of the LSA in the LSDB.What action does the router take?

A : The router sends a link-state update to its neighbor.

B : The router sends a link-state acknowledgement to its neighbor.

C : The router updates the information in its LSDB with the information received from its neighbor.

D : The router sends a link-state request to its neighbor.

E : The router takes no action.

Answer: A

Question 5

Which of the following is TRUE when the explicit null is implemented?

A : The penultimate router will forward packets to the eLER, based on the IP header.

B : The eLER will receive packets with a top label value of 0.

C : The eLER will receive packets with a top label value of 3.

D : The penultimate router will pop the top label from the packets.

Answer: B

Page: 1 / 60

Total 300 Questions | Updated On: Apr 01, 2026

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