问答题what type of route can be advertised to OSPF totally stubby area？

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问答题

what type of route can be advertised to OSPF totally stubby area？

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第1题：

ABR R1 has been configured with an area 1 stub no － summary command. Which stubby area type is area 1?()

A. Stub

B. Totally stubby

C. NSSA

D. Totally NSSA

参考答案：B

第2题：

Refer to the exhibit. OSPF has been configured on all routers in the network and Area 1 has been configured as a NSSA. Which statement is true about the NSSA Area 1?()

A. Only redistributed RIP routes will appear in Area 1. They will be advertised via t ype 7 LSAs

B. No redistributed routes can appear in Area 1, only summary routes

C. Redistributed RIP and IGRP routes will appear in Area 1. They will be advertised via type 5 LSAs

D. Only redistributed IGRP routes will appear in Area 1. They will be advertised via type 7 LSAs

参考答案：D

第3题：

Which action occurs when the static route 10.0.55.2／32 is evaluated by the policy main－policy? ()

A. The route is advertised into BGP.

B. The route is suppressed from BGP.

C. The route is advertised into BGP and goes only one hop.

D. The route is advertised into BGP and can only propagate throughout the neighboring AS.

参考答案：B

第4题：

OSPF stub areas are an important tool for the Network designer； which of the following two shouldbe considered when utilizing OSPF stub areas？（）

A、 OSPF stub areas increase the size of the LSDB with the addition of Type 3 and 5 LSAs
B、 OSPF not so stubby areas are particularly useful as a simpler form of summarization
C、 OSPF stub areas are always insulated from external changes
D、 OSPF totally stubby cannot distinguish among ABRs for the best route to destinationsoutsidethe areas
E、 OSPF stub areas can distinguish among ASBRs for destinations that are external to the OSPFdomain

正确答案:B,D

第5题：

You are troubleshooting an OSPF problem where external routes are not showing up in the OSPF database. Which two options a re valid checks that should be performed first to verify proper OSPF operation?（）

A、Are the ASBRs trying to redistribute the external routes into a totally stubby area?
B、Are the ABRs configured with stubby areas?
C、Is the subnets keyword being used with the redistribution command?
D、Is backbone area (area 0) contiguous?
E、Is the CPU utilization of the routers high?

正确答案:A,C

第6题：

To make OSPF area 4 totally stubby, the following command was issued on the ABR in router configuration mode: area 4 stub.Which two things need to be done to finish making area 4 a totally stubby area?（）

A. Apply the area 4 stub command to all routers in the area

B. On the ABR, use the area 4 stub command with the no - summary keyword

C. On the ABR, specify a default cost for the area with the area default - cost command

D. On the ABR, use the default - information originate command to inject a default route into area 4

E. Use the auto - cost command on each router in the area to automatically determine the cost to other OSPF areas

参考答案：A, B

第7题：

Which show command will display only the Type 5 LSAs in the OSPF topology database?()

A. show ip ospf database external

B. show ip ospf database nssa - external

C. show ip route ospf

D. show ip ospf datab ase summary

E. show ip route

参考答案：A

第8题：

What is a function of the OSPF Type 7 LSA?()

A. It describes the reachability of routes in stub areas.

B. It describes the reachability of routes in totally-stubby areas.

C. It describes the reachability of routes in not-so-stubby areas.

D. It describes the reachability of routes in partially-stubby areas.

参考答案：C

第9题：

When verifying the OSPF link state database, which type of LSAs should you expect to see within the different OS PF area types?（）

A、All OSPF routers in stubby areas can have type 3 LSAs in their database.
B、All OSPF routers in stubby areas can have type 7 LSAs in their database.
C、All OSPF routers in totally stubby areas can have type 3 LSAs in their database.
D、All OSPF routers in totally stubby areas can have type 7 LSAs in their database.
E、All OSPF routers in NSSA areas can have type 3 LSAs in their database.
F、All OSPF routers in NSSA areas can have type 7 LSAs in their database.

正确答案:A,E,F

第10题：

Which one of these statements is true of OSPF type 5 LSAs？（）

A、 They are used to summarize area routes to other areas.
B、 They are used in not-so-stubby areas to propagate external routes.
C、 They are used to notify areas of the ASBR.
D、 They are flooded to all areas except stub areas （external route）.

正确答案:D

what type of route can be advertised to OSPF totally stubby

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