Question 1

An interface is configured on a router for OSPF but the command 'show router ospf neighbor' does not show any neighbors. Which of the following is NOT a possible cause?

Options :

A : An OSPF database description packet has not been received from the neighbor.

B : The interface facing the neighbor is down.

C : The interface is included in a different area than the neighbor router.

D : The router has not received a valid OSPF Hello packet from its neighbor.

Answer: A

Question 2

What are the types of networks supported on an Nokia 7750 SR for OSPF? (Choose 2)

Options :

A : Broadcast

B : Non-Broadcast Multi-Access

C : Point-to-Point

D : Point-to-Multipoint

Answer: A,C

Question 3

What are the default Hello and Dead timer intervals for OSPF on the Nokia 7750 SR?

Options :

A : 5 and 15 seconds

B : 10 and 30 seconds

C : 5 and 20 seconds

D : 10 and 40 seconds

Answer: D

Question 4

Click on the exhibit.The route table on router R2 shows the system address of router R5 but it does not show any of the interfaces from the non-OSPF area.What may be causing this?

Options :

A : 'asbr' is missing from router R1-s configuration.

B : Router R1 needs to have an export policy added to it.

C : Router R5 does not have an export policy for these prefixes.

D : Router R1 needs to have an import policy added to it.

Answer: C

Question 5

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 update 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.

Answer: A

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