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

Question # 4

An OSPF ASBR must have at least one interface in the backbone area (area 0)

A.

True

B.

False

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Question # 5

An operator configures anNokia7750 SR with a loopback interface and IPv6 address. The operator then configures a routing policy to redistribute the loopback prefix into OSPFv3. What type of LSA is used to advertise the route to other OSPFv3 routers in the same area?

A.

Router LSA

B.

AS External LSA

C.

Intra-Area Prefix LSA

D.

Inter-Area Prefix LSA

E.

Network LSA

F.

None of the statements are correct.

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Question # 6

Click on the exhibit.

Router R2 learns the networks shown from IS-IS. Router R2 is configured to redistribute routes from IS-IS to OSPF as shown. Assume the OSPF and IS-IS adjacencies are operational.

How many OSPF Type 5 LSAs will router R1 receive from router R2?

A.

0

B.

1

C.

2

D.

3

E.

4

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Question # 7

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

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Question # 8

AnNokia7750 SR receives a route via an IS-IS LSP with internal reach ability, and receives the same route via an OSPF type 5 LSA. If al protocol preferences are default, which route will be installed in the route table?

A.

The route learned via IS-IS will be installed.

B.

The route learned via the OSPF type 5 LSA will be installed.

C.

Both routes will be installed, if ECMP is enabled.

D.

Both routes will be installed, regardless of whether ECMP is enabled.

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Question # 9

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.

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Question # 10

In an IP datagram, which of the following fields identifies the receiving application?

A.

The protocol field of the transport layer header.

B.

The port field of the transport layer header.

C.

The protocol field of the network layer header.

D.

The port field of the network layer address.

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Question # 11

Which of the following is NOT a characteristic of RIPv1?:

A.

30 second network updates

B.

Classless routing

C.

Broadcast advertisement

D.

Poison Reverse

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Question # 12

What causes an adjacency to change from "Init" to "Two Way"?

A.

When a Link State Update is received in response to a Link State Request

B.

When a router receives a Hello packet from a neighbor that contains its router id in the neighbor list

C.

When OSPF neighbors exchange Database Descriptor packets

D.

When a Link State Acknowledgement is received in response to a Link State Update

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Question # 13

An OSPF router receives an update in which the sequence number, age, and checksum are the same as the entry already in the topological database. What action is taken by the router?

A.

The link state information is not populated in the database but is forwarded to all neighbors

B.

The link state information already in the database is overwritten and the age is reset

C.

The link state information is not populated in the database and an acknowledgement is sent

D.

The link state information is regarded as old and nothing is done.

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Question # 14

Static routing will be used in a network between a corporate head office, with many connected networks, and a branch office, with one connection to the head office. Which of the following best describes the likely configuration?

A.

The corporate head office router will have a default route and the branch site will have a more specific static route.

B.

The corporate head office router and the branch office router will both have specific static routes.

C.

The corporate head office router and the branch router will both have default routes.

D.

The corporate head office router will have a more specific static route and the branch office router will have a default route.

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Question # 15

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

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