Free Nokia 4A0-112 Exam Dumps Questions & Answers

Which of the following statements about IS-IS is FALSE?

• A.  IS-IS uses the concept of level-1 and level-2 routers to implement hierarchy.
• B.  A router becomes level-2 when it is associated with the backbone area.
• C.  A level-1 router forwards traffic to other areas through the nearest I eve I-1/1 eve I-2 router.
• D.  In IS-IS, routers are associated with an area, not the interfaces.

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?

• A.  Less-capable routers can be isolated from having to keep track of IP prefixes that are external to the local routing domain.
• B.  Fewer routers are required to handle the same amount of traffic, as compared to a single-area domain.
• C.  Detailed topology information is only shared among routers within the same area, thus reducing the complexity of the SPF calculation.
• D.  Route tables can be reduced by summarizing the IP prefixes advertised between areas.

Refer to the exhibit.

All routers in the diagram are running an interior gateway protocol (IGP) and have been configured with an ECMP value of 4. Router R5 advertises the prefix 192.168.3.0/24 using the IGP. Assuming all links have the same cost, how many entries for prefix 192.168.3.0/24 will be in router R3's routing table?

• A.  3
• B.  2
• C.  4
• D.  1

Refer to the exhibit.

Which of the following statements best describes the IS-IS domain to which the command output corresponds?

• A.  Single-area IS-IS domain with no broadcast interfaces.
• B.  Single-area IS-IS domain with broadcast interfaces.
• C.  Multi-area IS-IS domain with no broadcast interfaces.
• D.  Multi-area IS-IS domain with broadcast interfaces.

Refer to the exhibit.

In the IS-IS network shown, router R1 has been configured to summarize subnetworks 20.20.1.0/24 and 20.20.2.0/24 as 20.20.0.0/16. Which routers' routing tables will be reduced, compared to their routing tables before the summarization?

• A.  Routers R1 and R2
• B.  Router R1
• C.  Router R2
• D.  Routers R2 and R4