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4A0-101 Exam Dumps : Alcatel-Lucent Interior Routing Protocols and High Availability

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Alcatel-Lucent Interior Routing Protocols and High Availability Questions and Answers

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Question 1

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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Question 2

How is the DR selected when an OSPF router is added to a broadcast network?

Options:

A.

The current DR is selected, if there is one. Otherwise, the router with the lowest priority is the DR. If priorities are the same, the DR is chosen based on the lowest RID.

B.

The current DR is selected, if there is one. Otherwise, the router with the highest priority is the DR. If priorities are the same, the DR is chosen based on the highest RID.

C.

The router with the lowest priority is the DR. If priorities are the same, the current DR is selected. Otherwise the DR is chosen based on the lowest RID.

D.

The router with the highest priority is the DR. If priorities are the same, the current DR is selected. Otherwise the DR is chosen based on the highest RID.

Question 3

What is the source IP address in an OSPF update?

Options:

A.

224.0.0.5

B.

224.0.0.6

C.

The unicast IP address of the interface the update is being sent on.

D.

The system address of the router

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