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4A0-C01 Practice Questions

Nokia NRS II Composite Exam

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Question # 11

Click on the exhibit.

Question # 11

The routers have an established IS-IS L2 adjacency on which IPv4 system addresses are exchanged. An operator successfully configures multi-topology IS-IS routing so that the IPv6 system addresses are also exchanged between routers.

After IPv6 has been configured, which of the following is TRUE?

Options:

A.  

Router R2 has two IS-IS adjacencies and two LSPs

B.  

Router R2 has two IS-IS adjacencies and three LSPs

C.  

Router R2 has two IS-IS adjacencies and four LSPs

D.  

Router R2 has three IS-IS adjacencies and three LSPs

E.  

Router R2 has three IS-IS adjacencies and four LSPs

F.  

Router R2 has three IS-IS adjacencies and six LSPs

Discussion 0
Question # 12

In an OSPF network, which of the following is NOT a result of manual summarization on an ABR?

Options:

A.  

It can reduce the topological database size.

B.  

It can reduce the size of the route table.

C.  

It can reduce the number of Summary LSAs.

D.  

It can reduce the number of Router LSAs.

Discussion 0
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 does the router take?

Options:

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.

E.  

A link-state request is performed to increase the sequence number.

Discussion 0
Question # 14

Which of the following statements best describe MPLS fast reroute characteristics? (Choose two)

Options:

A.  

Fast reroute requires you to manually define detour paths.

B.  

Fast reroute provides path protection close to the failure point

C.  

Fast reroute performs automatic path calculation and signaling.

D.  

Fast reroute protects both primary and secondary paths.

Discussion 0
Question # 15

Which of the following statements is true when the implicit null is implemented?

Options:

A.  

The penultimate router will POP the top label from the packets.

B.  

The eLER will receive packets with a top label value of 3.

C.  

The eLER will receive packets with a top label value of 0.

D.  

The penultimate router will always receive unlabeled packets.

E.  

The penultimate router performs a double lookup on the packet.

Discussion 0
Question # 16

Which of the following are characteristics of an LSP? (Choose two)

Options:

A.  

It is unidirectional.

B.  

It is bidirectional.

C.  

It must always have a secondary path.

D.  

It provides a specific tunnel for a FEC through the network.

E.  

It always follows the IGP best path.

Discussion 0
Question # 17

Which of the following best describes the actions taken by an IS-IS router after it receives an LSP on a broadcast interface that is newer than the one in its database?

Options:

A.  

The router sends a copy of the LSP from its database to its neighbor.

B.  

The router updates its database with the LSP and floods a copy to its other neighbors.

C.  

The router updates its database with the LSP, acknowledges the LSP with a PSNP and floods a copy to its other neighbors.

D.  

The router updates its database with the LSP and acknowledges it with a PSNP.

Discussion 0
Question # 18

Which of the following devices receives labeled packets from the MPLS domain, removes the MPLS header, and forwards unlabeled packets outside the MPLS domain?

Options:

A.  

P router

B.  

LSR

C.  

eLER

D.  

iLER

Discussion 0
Question # 19

Which component of the Alcatel-Lucent 7750 SR is in charge of performing the longest prefix match lookup on packets that arrive on the physical interfaces?

Options:

A.  

CPM

B.  

MDA

C.  

Switch Fabric

D.  

IOM

Discussion 0
Question # 20

Click the exhibit button.

Question # 20

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:

A.  

ping static 10.5.5.5

B.  

ping static 0.0.0.0/0

C.  

ping 10.5.5.5

D.  

ping 0.0.0.0

Discussion 0
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