Which of the following OSPF area types are supported by the Alcatel- Lucent 7750 SR? Choose two answers.

Answer(s): A,C

If OSPF is used in a multi-area OSPF network, which of the following statements regarding route summarization is true?

Manual route summarization can only be done on autonomous system border routers.
Manual route summarization must be done on all the backbone routers to be effective. Manual route summarization is optional on the routers in non-backbone areas.
Manual route summarization is done on the ABRs. By default, automatic summarization is done; however, it may not be optimal for all networks.
Manual route summarization is done on the ABRs. By default, no route summarization is done and all routes are advertised to all areas.

Answer(s): D

Click the exhibit button.

The OSPF packets shown have been exchanged between two neighbors. What state is the OSPF
adjacency in?

The adjacency state is two way because both routers have received a database description packet.
The adjacency is in the exchange state. The next step is to exchange link state request and link state update packets.
The adjacency is in the ex start state. The routers have exchanged database description packets, but still have to negotiate the starting sequence number.
The adjacency state is full. The routers are exchanging database description packets to notify each other that all link state advertisements have been received.

Answer(s): C