Online Access Free 4A0-112 Practice Test

There are several differences between IS-IS Hello packets used on broadcast interfaces and on point-to-point interfaces.
Which of the following statements is FALSE?

• A.The multicast MAC addresses to which the Hello messages are sent are different on broadcast interfaces and on point-to-point interfaces.
• B.The neighbors are identified using their interface MAC addresses on broadcast Hello messages and using their system IDs on point-to-point Hello messages.
• C.On broadcast interfaces there are different Hello packet types for level-1 and level-2 adjacencies, whereas on point-to-point interfaces there is a single Hello packet type.
• D.Broadcast Hello messages identify the elected designed IS (DIS) and point-to-point Hello messages do not.

Consider the exhibit.

All routers are running IS-IS with IPv6 support enabled. Based on the topology shown, and the route tables of routers R3 and R4, which of the following statements is TRUE?

• A.Route leaking is configured on both routers R1 and R2.
• B.Route leaking is configured on router R2 but not on router R1.
• C.There is no route leaking configured on router R1 or router R2.
• D.Route leaking is configured on router R1 but not on router R2.

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

Refer to the exhibit.

Routers R1 through R4 in the diagram have established IS-IS adjacencies. Router R1 is L1/L2 and is the DIS of its two broadcast interfaces. How many LSPs will it generate?

• A.4
• B.2
• C.3
• D.5

Which of the following definitions best describes route redistribution?

• A.It is the process of deciding at line-rate speed which packets will be dropped and which ones will be forwarded.
• B.It is the process of redirecting packets to be processed by an intermediate network function before allowing them to be forwarded to their intended final destination.
• C.It is the process of controlling which route advertisements received from routing peers are accepted and/or deciding which locally known prefixes are advertised to routing peers.
• D.It is the process of passing routing information from one routing domain to another, which usually means from one routing protocol to another.