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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

Initially, all ports on an Nokia 7750 SR have 10Gbps bandwidth. RSVP configuration limits reservable bandwidth to 30 percent on all interfaces. An LSP is signaled reserving 1 Gbps bandwidth. How much unreserved bandwidth is left on the interface?

A.

10 Gbps

B.

7 Gbps

C.

3 Gbps

D.

2 Gbps

Click the exhibit button.

The OSPF adjacency between routers R3 and R1 is down. What is the problem?

A.

Area 1 of router R1 should not be configured as a stub.

B.

Router R3 has the incorrect authentication key type.

C.

Router R1 has the incorrect authentication key type.

D.

There is not enough information to tell.

Which of the following about MPLS shortcuts for IGP on an Nokia 7750 SR is FALSE?

A.

An IGP route takes priority over a transport tunnel.

B.

Both LDP and RSVP-TE based tunnels can be used.

C.

MPLS tunnels can be used to resolve the prefixes learned via IGP.

D.

Multiple MPLS tunnels can be installed in the FIB.

What is the default preference value for a static route in the Nokia 7750 SR?

A.

0

B.

5

C.

10

D.

15

An autonomous system has 7 routers configured with BGP. How many iBGP sessions are required for a fully meshed configuration?

A.

7

B.

13

C.

21

D.

42

Which of the following is NOT a benefit of "Hub and Spoke'' VPLS deployments?

A.

They reduce the number of SDPs that need to be configured.

B.

They can be used to work around physical topologies that prevent a fully meshed deployment.

C.

They prevent loops that can be introduced by mesh deployments.

D.

They can simplify the implementation of security policy enforcement and packet inspection.

Which of the following OSPFv3 LSAs have an AS scope?

A.

Link Local LSA

B.

Router LSA

C.

Network LSA

D.

Inter-Area Router LSA

E.

Intra-Area Prefix LSA

F.

None of the above LSAs have an AS scope.

Facility fast reroute with node protection is enabled for an LSP, which of the following is FALSE?

A.

Each PLR signals a bypass tunnel that avoids the next-hop downstream router.

B.

When a failure occurs, the PLR pushs an additional label onto the label stack.

C.

No bypass tunnel is established if the PLR cannot provide node protection.

D.

The head-end router sets the local protection desired flag in the session attribute object.

Which of the following about route distinguishes on the Nokia 7750 SR is TRUE?

A.

Route distinguishes are appended to IPv4 prefixes to form IPv6 prefixes.

B.

CE routers use a route distinguisher to indicate which VPRN they are associated to.

C.

A route distinguisher combined with an IPv4 prefix produces a VPN-IPv4 prefix.

D.

Route distinguishes are used to determine which routes a VPRN should import.

Click the exhibit button.

Which of the following would correctly configure routers R2, R3, and R4?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Click the exhibit.

Routers RR1 are RR2 are redundant route reflectors for clients R3 and R4. Which of the following is a valid configuration on router RR1?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Which of the following statements best describes the function of an OSPF Type 4 LSA?

A.

A Type 4 LSA is originated by an ABR to describe a route to an ASBR to routers outside the area.

B.

A Type 4 LSA is originated by an ASBR to describe a route to itself to routers outside the area.

C.

A Type 4 LSA is originated by an ABR that is connected to a stub area. The LSA is injected into the backbone area to provide routing information.

D.

A Type 4 LSA is originated by an ABR that is connected to a stub area. The LSA is injected into the stub area to provide routing information.

An E-pipe is configured with a service MTU of 5000. What is the minimum MTU value that should be set on an access port for a dot1q encapsulated SAP on this service?

A.

5000

B.

5004

C.

5008

D.

5014

An LSP is configured with one-to-one FRR and node protection on a Nokia 7750 SR. Which of the following is FALSE?

A.

Each PLR signals a protection tunnel that avoids the downstream node.

B.

A single protection tunnel can protect all LSPs that go through the same hop.

C.

A link protection tunnel is signaled if a node protection tunnel cannot be established.

D.

Protection tunnels used in this LSP are also detour tunnels.

Click the exhibit.

Given that ISP 1 and ISP 2 are Tier 2 providers, and that ISP 3 and ISP 4 are Tier 1 providers, what is the most likely relationship between ISP 1 and the other ISPs?

A.

ISP 1 has a peering relationship with ISP 2 and ISP 4.

B.

ISP 1 has a peering relationship with ISP 2 and a transit relationship with ISP 3.

C.

ISP 1 has a peering relationship with ISP 2 and ISP 3.

D.

ISP 1 has a transit relationship with ISP 2 and ISP 4.

E.

ISP 1 has a transit relationship with ISP 2 and a peering relationship with ISP 3.

Which of the following fields does NOT appear in the MPLS label header?

A.

Label

B.

Frame check sequence

C.

Traffic Class (previously called Experimental)

D.

Time To live

E.

Bottom of stack bit

Click the exhibit.

AS 65100 is advertising 192.168.1.0/27 into BGP. Which of the following AS Paths would the prefix 192.168.1.0/27 contain when viewed on router R7?

A.

65206 65202 65100

B.

(65206 65202)65100

C.

(65204 65206 65202) 65100

D.

(65200) 65100

Which of the following is NOT a goal of BGP routing policies?

A.

To protect external networks from instability.

B.

To communicate the architecture of an AS to external ASs.

C.

To protect the local AS and other external ASs from bad NLRI.

D.

To optimize ingress and egress traffic patterns to best serve the users of the AS.

Identify two attributes of Distance Vector Protocols: (Choose two)

A.

Use split horizon by default.

B.

Send information about directly connected links to neighbors at periodic intervals.

C.

Use holddown timers when topologies change to allow for convergence.

D.

Maintain multiple databases: neighbor, topology and routing.

Which of the following about VPN labels is FALSE?

A.

They are signaled between PE devices using MP-BGP.

B.

They are swapped at each P router as a packet crosses the service provider network.

C.

They are also known as the inner label or service label.

D.

They indicate to the egress PE the VPRN to which a packet belongs.

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