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Question 277 - 300-410 discussion

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Refer to the exhibit.

The network engineer configured the summarization of the RIP routes into the OSPF domain on R5 but still sees four different 172.16.0.0/24 networks on R4. Which action resolves the issue?

A.

R5(config)#router ospf 1

R5(config-router)#no area

R5(config-router)#summary-address 172.16.0.0 255.255.252.0

Answers
A.

R5(config)#router ospf 1

R5(config-router)#no area

R5(config-router)#summary-address 172.16.0.0 255.255.252.0

B.

R4(config)#router ospf 99

R4(config-router)#network 172.16.0.0 0.255.255.255 area 56

R4(config-router)#area 56 range 172.16.0.0 255,255.255.0

Answers
B.

R4(config)#router ospf 99

R4(config-router)#network 172.16.0.0 0.255.255.255 area 56

R4(config-router)#area 56 range 172.16.0.0 255,255.255.0

C.

R4(config)#router ospf 1

R4(config-router)#no area

R4(config-router)#summary-address 172.16.0.0 255.255.252.0

Answers
C.

R4(config)#router ospf 1

R4(config-router)#no area

R4(config-router)#summary-address 172.16.0.0 255.255.252.0

D.

R5(config)#router ospf 99

R5(config-router)#network 172.16.0.0 0.255.255.255 area 56

R5(config-router)#area 56 range 172.16.0.0 255.255.255.0

Answers
D.

R5(config)#router ospf 99

R5(config-router)#network 172.16.0.0 0.255.255.255 area 56

R5(config-router)#area 56 range 172.16.0.0 255.255.255.0

Suggested answer: A

Explanation:

Area 36 is a NSSA so R5 is an ASBR so we can summarize external routes using the "summaryaddress" command. The command "area area-id range" can only be used on ABR so it is not correct.

The summarization must be done on the ASBR which is R5, not R4 so the correct answer must be started with "R5(config)#router ospf 1".

Note: The "no area" command is used to remove any existing "area Ö" command (maybe "area 56 range Ö" command).

asked 07/10/2024
Angélica González
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