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4A0-112 Exam Dumps : Nokia IS-IS Routing Protocol

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Nokia IS-IS Routing Protocol Questions and Answers

Question 1

A routing domain uses a link-state routing protocol. Which of the following would NOT be an advantage of dividing the entire routing domain into areas?

Options:

A.

Detailed topology information is only shared among routers within the same area, thus reducing the complexity of the SPF calculation.

B.

Route tables can be reduced by summarizing the IP prefixes advertised between areas.

C.

Less-capable routers can be isolated from having to keep track of IP prefixes that are external to the local routing domain.

D.

Fewer routers are required to handle the same amount of traffic, as compared to a single-area domain.

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Question 2

What do the address resolution protocol (ARP) for IPv4 and the neighbor discovery procedures for IPv6 have in common?

Options:

A.

Both detect duplicate MAC address assignments.

B.

Both detect duplicate IP address assignments.

C.

Both resolve a host device's MAC address using its IP address.

D.

Both resolve a host device's IP address using its MAC address.

Question 3

In the diagram, all routers are using IS-IS as their routing protocol. The number next to each link is its metric value.

What path will traffic follow from router R1 to router R7, and from router R7 to router R1?

Options:

A.

Router R1 to router R7 will follow (R1-R2-R4-R6-R7). Router R7 to router R1 will follow (R7-R6-R4-R2-R1).

B.

Router R1 to router R7 will follow (R1-R2-R4-R6-R7). Router R7 to router R1 will follow (R7-R6-R5-R3-R1).

C.

Router R1 to router R7 will follow (R1-R3-R5-R6-R7). Router R7 to router R1 will follow (R7-R6-R4-R2-R1).

D.

Router R1 to router R7 will follow (R1-R3-R5-R6-R7). Router R7 to router R1 will follow (R7-R6-R5-R3-R1).