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4A0-113 Nokia OSPF Routing Protocol Exam Questions and Answers

Questions 4

From the list below select the statements that describe the behavior of link state information aging. (Choose 2)

Options:

A.

The age for newly created link state information is set to 0 for OSPF and 1200 for IS-IS

B.

The age for newly created link state information is set to 1200 for OSPF and 0 for IS-IS

C.

The age is incremented or decremented as it is flooded from router to router and as it is held in the topological database.

D.

The age is incremented or decremented only as it is held in the topological database and not as it is flooded router to router.

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Questions 5

What are the ways the RID can be created on anNokia7750 SR router? (Choose three)

Options:

A.

From the last 32 bits of the chassis MAC address

B.

From the first 32 bits of the chassis MAC address

C.

The loopback IP address

D.

By using the command "config router ospf rid X.X.X.X"

E.

From the system IP address

F.

From the highest interface IP address

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Questions 6

Which of the following cannot be used as a matching criterion in route policy statements?

Options:

A.

Source IP address

B.

TCP source port

C.

Prefix list

D.

Protocol type

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Questions 7

Which of the following statements best describes an OSPF type 3 LSA?

Options:

A.

An OSPF type 3 LSA is an intra-area LSA, generated by the ABR only when route summarization is configured.

B.

An OSPF type 3 LSA is an inter-area LSA, generated by the ABR only when route summarization is configured.

C.

An OSPF type 3 LSA is an inter-area LSA, generated by an ASBR to describe external routes.

D.

An OSPF type 3 LSA is an inter-area LSA, generated by the ABR to describe a route to neighbors outside the area.

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Questions 8

Which of the following LSA types stay within an OSPF area, and are not flooded outside of the area? Choose two answers.

Options:

A.

Router LSA

B.

Network LSA

C Summary network LSA

C.

Summary router LSA

D.

Type 5 (AS external) LSAs

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Questions 9

Which of the following statements concerning OSPFv3 is false?

Options:

A.

MD5 Authentication is not supported.

B.

Router LSAs do not carry IPv6 prefix information

C.

NSSA is not supported in OSPFv3.

D.

OSPFv3 uses a 32-bit router ID.

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Questions 10

Exhibit

Given the two configurations shown, identify the two incorrect statements below: (Choose two)

Options:

A.

Both routers will generate OSPF Hello packets.

B.

The system interface is missing in one configuration so OSPF will not operate correctly.

C.

The interface type settings differ, but OSPF will still operate correctly.

D.

Metric values differ, but this does not prevent OSPF operation.

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Questions 11

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?

Options:

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.

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Questions 12

What command will show the OSPF neighbors, and their status on theNokia7750 SR?

Options:

A.

Show ospf neighbors

B.

Show router ospf neighbors

C.

Show router ospf adjacency

D.

Show ospf adjacency

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Questions 13

There is an IP host with IP address 10.2.3.1. A static route is created, using the "configure router static-route 10.2.3.0/24 next-hop 10.1.2.1" command. What is the correct traceroute command to test this static route on anNokia7750 SR?

Options:

A.

traceroute 10.2.3.1

B.

traceroute 10.2.3.1 next-hop 10.1.2.1

C.

traceroute next-hop 10.1.2.1

D.

traceroute does not work on theNokia7750 SR.

E.

traceroute 10.1.2.1

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Questions 14

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?

Options:

A.

10.10.10.99

B.

10.10.10.66

C.

10.10.10.2

D.

10.10.10.1

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Questions 15

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

Options:

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.

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Exam Code: 4A0-113
Exam Name: Nokia OSPF Routing Protocol Exam
Last Update: Mar 29, 2024
Questions: 103
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