Get Certified: Proven Methods to Pass the Nokia 4A0-101 Exam

Questions 21

How does an IS-IS router acknowledge the receipt of an IS-IS LSP on a point-to-point link?

Options:

They are explicitly acknowledged by sending a CSNP to the sender identifying the LSP.

They are implicitly acknowledged as a part of the link-state database synchronization and maintenance procedures.

They are explicitly acknowledged by sending a PSNP to the sender identifying the LSP.

They are implicitly acknowledged by the DIS multicast of CSNPs.

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Questions 22

Click the exhibit button.

4A0-101 Question 22

192.168.3.1 is a loopback interface on router R2 and is distributed to OSPF area 0, but the ping fails from router R3. Which of the following is a possible solution to the problem?

Options:

Add the "originate-default-route" option in the NSSA area configuration on router R3

Add the "summaries" option to the NSSA area configuration on router R1

Make a static route on router R1 to 192.168.3.1

Make a default route on router R2

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Questions 23

Click the exhibit button

4A0-101 Question 23

The 192 168 3.0/24 network is learned on router R1 via IS-IS Given the OSPF configuration shown, and assuming that the OSPF adjacency between routers R1 and R3 is up, why is the 192 168.3.0/24 route not in router R3's route table? (Choose two)

Options:

The route policy should be applied as in import policy

The no-redistribute-external command is used on router R1

The route policy is incorrect. It should say "from protocol ISIS" rather than "from protocol direct".

It is not possible to be an ASBR and an NSSA. The ASBR configuration should be removed.

The interface between routers R1 and R3 needs to be in OSPF area 0 rather than OSPF area 1 because a backbone area must always exist.

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Questions 24

Refer to the exhibit.

4A0-101 Question 24

Assume that OSPFv3 is properly configured on all routers and that R4 advertises its system prefix into Area 0. Which of the following statements best describes how R5 learns R4's IPv6 system prefix?

Options:

With a Router LSA originated by R1

With a Router LSA originated by R5

With a Router LSA originated by R4

With an Inter-Area Prefix LSA originated by R1

With an Inter-Area Prefix LSA originated by R5

With an Inter-Area Prefix LSA originated by R4

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Questions 25

Click the exhibit button. What is the state of adjacency?

4A0-101 Question 25

Options:

Exchange

Down

2-Way

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Questions 26

What is the CIDR summary for the block of networks from 193.4532.0/24 to 193.45.47.0/24?

Options:

193.45 32 0/20

193.45.0.0/21

192.45.32.0/21

192.45.0.0/20

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Questions 27

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:

The router sends a link-state update to its neighbor.

The router sends a link-state acknowledgement to its neighbor.

The router updates the information in its LSDB with the information received from its neighbor.

The router sends a link-state request to its neighbor.

The router takes no action.

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Questions 28

Which of the following statements regarding link state protocols are true? (Choose two)

Options:

When a router receives updates from its neighbors, it adds them to its link state database, performs an SPF computation, and sends the results to its neighbors.

An SPF computation is done by each router to determine the best path to destination networks. All the best paths determined by the SPF calculation will be seen in the route table.

Each router constructs its own link state database with updates received from neighbors.

An SPF computation is done by each router to determine the best path to destination networks. All the best paths determined by the SPF calculation will be offered to the route table manager.

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Questions 29

Click the exhibit button.

4A0-101 Question 29

A static route is created on router R1 using the command "static-route 0.0.0.0/0 next-hop 10.3.3.2". What command can be used to test the static route on an Alcatel-Lucent 7750 SR?

Options:

ping static 10.5.5.5

ping static 0.0.0.0/0

ping 10.5.5.5

ping 0.0.0.0

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Questions 30

Refer to the exhibit below. IS-IS IPv6 routing is configured in the network with globally routed addresses as shown. How many routes will R4 have in its IPv6 route table?

4A0-101 Question 30