Free 4A0-113 Exam braindumps download (4A0-113 exam dumps Free)

When are virtual links used in OSPF?

When two areas need to communicate and there is no area 0.
When an area needs to traverse another area to reach area 0.
When two areas are connected to area 0, but there is no direct path between them.
When an area needs to connect directly to another area without using area 0.

Answer(s): B

Which of the following statements regarding area border routers in an OSPF network is true?

The term backbone router has the same definition as the term area border router.
An OSPF network needs at least one area border router to function.
Area border routers connect the backbone area to other areas in an OSPF network.
By definition, an area border router must perform route summarization between areas.

Answer(s): C

Which of the following correctly lists the 5 OSPF packet types?

Hello, link state update, link state packet, link State acknowledgement, database description.
Link state update, link state refresh, link state acknowledgement, database description, notification.
Hello, link state refresh, link state update, link state acknowledgement, link state authentication.
Hello, link state update, link state request, link state acknowledgement, database description.

Answer(s): D

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

Free 4A0-113 Exam Braindumps Nokia OSPF Routing Protocol Questions 26–30 (page: 7)