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4A0-C04 Nokia NRS II Composite Exam: OSPF version Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Nokia 4A0-C04 Nokia NRS II Composite Exam: OSPF version certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 298 questions

Which of the following prefix-lists is the most specific match for prefix 172.31.2.1/24?

A.

Prefix 172.16.0.0/12 longer.

B.

Prefix 172.31.0.0/22 longer.

C.

Prefix 172.31.0.0/23 longer.

D.

Prefix 172.31.0.0/24 exact.

Which of the following is NOT required when configuring an LSP with an admin group constraint on an Nokia 7750 SR?

A.

Enable traffic engineering on all routers along the LSP path.

B.

Enable CSPF on the head-end router.

C.

Configure a path definition on all routers along the LSP path.

D.

Enable MPLS and RSVP on all routers along the LSP path.

Click the exhibit.

Assume all router-IDs are properly configured, and global IPv6 addresses are used to establish eBGP sessions. Which of the following configurations is required on router A so that router B can exchange traffic with router D?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Which of the following about SAPs is FALSE?

A.

A SAP can be associated with more than one service.

B.

A SAP is the subscriber's point of entry to the service network.

C.

A SAP is created by specifying a physical port and an encapsulation type.

D.

A SAP can only be created on a port configured as "access".

Which of the following OSPF area types are supported by the Alcatel- Lucent 7750 SR? Choose two answers.

A.

Not so stubby areas

B.

Level1 area WC

C.

Stub areas

D.

Partially stubby areas

E.

Level 2 areas

Click the exhibit.

The CEs use BGP and export policies to advertise their local prefixes with the VPRN on their PEs. If the VPRN is functioning properly, which of the following commands will succeed when performed on router R1?

A.

"ping 192.168.20.1"

B.

"oam vprn-ping 100 source 192.168.10.1 destination 192.168.20.1"

C.

"oam vprn-ping 100 source 192.168.20.1 destination 192.168.10.1"

D.

"ping 10.10.10.6" (router R6's system IP)

Which routing protocol cannot be run over an Ipipe?

A.

OSPF

B.

RIP

C.

BGP

D.

IS-IS

On an Nokia 7750 SR, which vc-type will strip service delimiting tags at the ingress PE?

A.

vc-type ether

B.

vc-type vlan

C.

vc-type dotlq

D.

vc-type null

Click on the exhibit.

What is the possible reason that the label for prefix 192.10.1.2/32 is not active?

A.

The router does not have a route to reach to the peer 10.10.10.2/32.

B.

The router does not have a route to reach to the prefix 192.10.1.2/32.

C.

The router does not have an export policy defined to export the prefix 192.10.1.2/32 into LDP.

D.

The router receives an invalid label for the prefix 192.10.1.2/32 from its peer.

Which of the LSA types stay within an OSPF area and are not exported outside of the area? (Choose all that apply)

A.

Router LSA

B.

Network LSA

C.

Summary Network LSA

D.

Summary Router LSA

The configuration of an Nokia 7750 SR is given below. Router Rl has established BGP sessions with routers R2 and R3. Which of the following is TRUE?

A.

Router R1forms an iBGP session with router R2, and an eBGP session with router R3.

B.

Router R1forms iBGP sessions with routers R2 and R3.

C.

Router R1forms eBGP sessions with routers R2 and R3.

D.

The types of BGP sessions with routers R2 and R3 cannot be determined.

Click on the exhibit.

LSP 1's link between routers R3 and R6 has failed, and the RESV state at router R3 has timed out. Which of the following actions will router R3 initiate?

A.

Send a PathTear message towards router R6.

B.

Send a PathTear message towards router R1.

C.

Send a ResvTear message toward router R6.

D.

Send a ResvTear message toward router R1.

Click the exhibit.

The output is from PE router R4 about VPRN service 100. How many prefixes have been learned from the MP-BGP protocol?

A.

0

B.

2

C.

3

D.

6

Click the exhibit button.

The following command sequence is executed on router R2:

    A: R2# configure router ospf router-id 10.10.10.99

    A: R2# configure router router-id 10.10.10.66

On router R1, what router ID appears for router R2 directly after these commands are executed?

A.

10.10.10.99

B.

10.10.10.66

C.

10.10.10.2

D.

10.10.10.1

Which of the following devices assumes the active role during the establishment of an LDP session?

A.

The peer with the higher physical address.

B.

The peer with the higher transport address.

C.

The peer with the lower physical address.

D.

The peer with the lower transport address.

E.

The peer that generated the first Hello message.

Which of the following about CSPF is TRUE?

A.

The tail-end router performs the CSPF calculation for an LSP.

B.

CSPF calculations are always performed on RSVP-TE based LSPs.

C.

The head-end router performs the CSPF calculation for an LSP.

D.

Each downstream router performs its own CSPF calculation for an LSP.

Click on the exhibit.

An LDP tunnel is established on R1-R2-R4-R6 because the link between routers R3 and R6 is down. With the LDP-IGP Sync feature enabled, what happens immediately after the link is restored?

A.

A new LDP session is established on R1-R3-R6 as soon as the FIB is updated.

B.

The LDP session remains unchanged until the existing path R1-R2-R4-R6 goes down.

C.

A new LDP session is established on R1-R3-R6 as soon as router R1 receives a new label for router R6.

D.

The LDP session remains unchanged until router R3 stops advertising the maximum metric for the link to router R6.

If an Nokia 7750 SR is an iLER operating in pipe mode, which of the following regarding the TC field (EXP bits) is TRUE?

A.

The TC field is set based on the value of the DSCP field inside the customer packet.

B.

The TC field is set to a specific value via explicit administrative configuration.

C.

The TC field is set to a system generated random number.

D.

The TC field is set by the eLER.

Click on the exhibit.

An LSP traverses R1-R2-R4-R6 and one-to-one fast reroute with link protection is enabled. All links have the same cost. Which of the following about DMP and MP is TRUE?

A.

R3 and R5 become DMPs; R6 becomes MP.

B.

R3 and R5 become DMPs; R4 becomes MP.

C.

R3, R5, and R6 become DMPs; R4 becomes MP.

D.

R1, R3, and R5 becomes DMPs; R4 and R6 become MPs.

Which of the following about the Nokia 7750 SR sdp-ping is TRUE?

A.

It tests the IGP reachability of the far-end IP address of an SDP.

B.

It tests that the MTU settings of a service are correct.

C.

It tests in-band, uni-directional or round-trip connectivity of SDPs.

D.

It tests the reachability of hosts connected to an SDP.

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Total 298 questions
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