4A0-101 Online Practice Questions and Answers

What is the default preference value for a static route in the Alcatel-Lucent 7750 SR?

A. 0

B. 5

C. 10

D. 15

Click the exhibit button.

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

A. Router R1

B. Router R2

C. Routers R1 and R2

D. Router R4

Click the exhibit button.

If router R2 redistributes the IS-IS route to 192.168.3.0/24 into OSPF, router R3 preference of these two routes? Choose two answers.

A. The OSPF internal preference

B. The IS-IS Level 1 internal preference

C. The IS-IS Level 2 internal preference

D. The OSPF external preference

E. The IS-IS Level 2 external preference

F. The IS-IS Level 1 external preference

In an OSPF Hello packet what fields must match all neighbor routers on the segment? (Choose 3)

A. Area ID

B. Hello and Dead Intervals

C. Stub flag

D. DR and BDR addresses

E. The list of neighbors

Two IS-IS L1/L2 routers are in the same area on the same Ethernet segment. One of the routers is the DIS. How many adjacencies will be formed between them?

A. None

B. 1

C. 2

D. 3

E. 4

Click on the exhibit.

Given the contents of the LSPs from routers R1 and R2, which of the following is TRUE?

A. Router R1 summarizes the prefixes from router R3 as 192.168.0.0/16 and router R2 does not summarize the prefixes.

B. Router R1 does not summarize the prefixes from routers R3 and R2 summarizes them as 192.168.0.0/16.

C. Router R1 summarizes the prefixes from router R3 as 192.168.0.0/20 and router R2 does not summarize the prefixes.

D. Router R1 does not summarize the prefixes from routers R3 and R2 summarizes them as 192.168.0.0/20.

E. Both routers R1 and R2 summarize the prefixes from R3 as 192.168.0.0/20.

F. Neither router R1 nor router R2 summarizes the prefixes from router R3.

Click on the exhibit.

Examine the physical topology of the IS-IS network, the metrics of the links and the levels of the routers. All routers have a system address included in IS-IS.

Which of the following describes the route that router R4 will use to reach the system address of router R6?

A. Router R4 will have a route to router R6's system address with router R2 as the next-hop.

B. Router R4 will have a default route with router R2 as the next-hop.

C. Router R4 will have a default route with router R3 as the next-hop.

D. Router R4 will not have a route to router R6's system address, nor will it have a default route.

Click on the exhibit.

An OSPFv3 router is attached to a non-OSPF domain that includes networks 2001:DB8:8::/64.2001 .DB8:9::/64 and 2001 :DB8:A::/64. Other routers in the OSPF domain see the prefix 2001, DB8:8::/64, but not the other two prefixes.

What could cause this?

A. The router is not configured as an asbr.

B. The router is not configured as an NSSA.

C. The export policy is not applied to OSPFv3.

D. The prefix list should be 2001:DB8:8::/46

Which of the following are major features of OSPF? (Choose 2.)

A. Fast reroute capability.

B. Control traffic prioritization.

C. Route redistribution.

D. Traffic engineering extensions.

E. Cut through forwarding.

Which of the following best describes an OSPF Type 3 LSA?

A. A Type 3 LSA is generated by an ASBR only when route summarization is configured.

B. A Type 3 LSA is generated by an ABR only when route summarization is configured.

C. A Type 3 LSA is generated by an ASBR to describe routes to routers outside the area.

D. A Type 3 LSA is generated by an ABR to describe routes to routers outside the area.