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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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What command could be used to verify proper configuration of a static route in an Nokia 7750 SR router?

A.

Show route-table

B.

Show router routing-table

C.

Show router route-table

D.

Show static

Click the exhibit.

The two PEs are providing 6VPE and IPv4 VPRNs. The core network is IPv4/MPLS. Which of the following is the BGP family configuration for the MP-BPG on the PEs?

A.

family ipv4 ipv6

B.

family vpn-ipv4ipv6

C.

family vpn-ipv4 vpn-ipv6

D.

family ipv6 vpn-ipv6

Which of the following regarding "well-known discretionary'' BGP attributes is TRUE?

A.

They must be recognized by all peers and included in all BGP updates.

B.

They are discarded if not recognized by the recipient.

C.

They must be recognized by all peers and optionally included in BGP updates.

D.

The receiving router sends a notification if a well-known discretionary attribute is not present in an update.

Click on the exhibit.

An LSP traverses the path R1-R2-R3. With one-to-one fast reroute enabled, which router becomes a DMP for the detour tunnels?

A.

Router R1

B.

Router R2

C.

Router R3

D.

Router R4

E.

Router R5

If OSPF is used in a multi-area OSPF network, which of the following statements regarding route summarization is true?

A.

Manual route summarization can only be done on autonomous system border routers.

B.

Manual route summarization must be done on all the backbone routers to be effective. Manual route summarization is optional on the routers in non-backbone areas.

C.

Manual route summarization is done on the ABRs. By default, automatic summarization is done; however, it may not be optimal for all networks.

D.

Manual route summarization is done on the ABRs. By default, no route summarization is done and all routes are advertised to all areas.

Click the exhibit button.

If router R2 redistributes the IS-IS route to 192.168.3.0/24 into OSPF, router R3 preference of these two routes? Choose two answers.

A.

The OSPF internal preference

B.

The IS-IS Level 1 internal preference

C.

The IS-IS Level 2 internal preference

D.

The OSPF external preference

E.

The IS-IS Level 2 external preference

F.

The IS-IS Level 1 external preference

Click the exhibit button.

Given the topology and the show commands, and assuming that router R2 advertises all of its loopbacks into OSPF, what is the correct router R1 configuration?

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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

A.

In multi-access networks, a DR and BDR are elected only if there are more than two routers connected to the network segment.

B.

In multi-access networks, a DR and BDR are elected only if the subnet masks on the router interfaces are less than /30

C.

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.

D.

In multi-access networks, a DR and BDR are elected. The DR sends link-state advertisements describing the network.

Click the exhibit.

An update travels from AS 137000 to AS 135000, traversing both 32-bit and 16-bit AS Paths.

What AS Path is seen by AS 200?

A.

140000 137000

B.

137000 140000

C.

23456 23456

D.

200 140000 137000

If an LSP needs to use an admin group, which of the following configurations is NOT required on the Nokia 7750 SR?

A.

Assign an admin group to a MPLS interface.

B.

Configure CSPF on the LSP.

C.

Configure at least one strict hop on the LSP path.

D.

Configure an "include" or "exclude" statement on the LSP path.

Which of the following is TRUE if the local state of BGP is OpenConfirm?

A.

The local system has received a Keepalive message and is ready to exchange updates.

B.

The local system is exchanging Update messages with its neighbor.

C.

The local system has sent a Keepalive message to its neighbor and is waiting to receive one back.

D.

The local system has sent an Open message to its neighbor and is waiting to receive one back.

What are the three databases maintained by a Link State Protocol?

A.

Neighbor, adjacency, route table

B.

Neighbor, topology, forwarding

C.

Topology, routing, forwarding

D.

There are only two databases: adjacency and topology

Which of the following concerning OSPFv3 is TRUE?

A.

OSPFv3 uses MD5 Authentication.

B.

Router LSAs carry IPv6 prefix information.

C.

NSSA is supported in OSPFv3.

D.

OSPFv3 uses a 64-bit router ID.

Which of the following about the components of a distributed service on the Nokia 7750 SR is TRUE?

A.

A SAP can only be used by one service on a router.

B.

A dedicated SDP needs to be created for each service.

C.

A service is created on each site before the customer is created.

D.

SAPs must be created before a service is created.

Which of the following is NOT a characteristic of MPLS?

A.

It provides the ability to establish connection oriented paths over a connectionless IP network.

B.

It provides a mechanism to engineer network traffic patterns independently of IP routing tables.

C.

It will work over most physical layer protocols.

D.

It can use GRE tunnels to transport data from many different protocols over an IP network.

Click on the exhibit.

This LSP terminates on a system IP address. What is the system address of the destination node?

A.

10.32.1.2

B.

10.1.4.78

C.

10.48.1.1

D.

10.1.2.2

Which of the following statements regarding OSPF routing updates on a point-to-point link is true?

A.

On a point-to-point link, there is no need for a DR and BDR election; all routing updates are sent to 224.0.0.5.

B.

On a point-to-point link, a DR and BDR are elected. The DR sends link-state advertisements describing the network.

C.

On a point-to-point link, a DR and BDR are elected. To ensure resiliency, both the DR and BDR send link-state advertisements describing the network.

D.

On a point-to-point link, there is no need for a DR and BDR election. All routing updates are sent to the unicast address of the neighbor's interface.

In a Layer 2 encapsulation using T-LDP, what does the first (top) label represent?

A.

Tunnel Label

B.

VC Label

C.

Operational Control Word

D.

UNI

E.

NNI

What are the types of networks supported on an Nokia 7750 SR for OSPF? (Choose 2)

A.

Broadcast

B.

Non-Broadcast Multi-Access

C.

Point-to-Point

D.

Point-to-Multipoint

Which of the following statements is TRUE?

A.

An OSPF adjacency can be established on an IES interface.

B.

IES allows provider MP-BGP sessions to be extended to customers.

C.

An IES service must use static routes in order to communicate with customer networks.

D.

An IES interface supports OSPF and IS-IS in passive mode only.

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