hard
Single Answer
0

In the following figure, you have two areas that you want OSPF to advertise routes for. Which command(s) will achieve this?

Answer Options

A

network 128.24.0.0/22 area 0 network 128.24.0.0/22 area 1

B

network 128.24.0.0 0.0.252.255 area 0 network 128.24.0.0 0.0.252.255 area 1

C

network 128.24.0.0 0.0.254.255 area 0 network 128.24.0.0 255.254.255 area 1

D

network 128.24.0.0 0.0.255.255

Correct Answer: B

Explanation

The network IDs of 128.24.0.0/24, 128.24.1.0/24, 128.24.2.0/24, and 128.24.3.0/24 can be summarized as 128.24.1.0/22. The wildcard-mask for /22 is 0.0.252.255. The commands network 128.24.0.0/22 area 0 and network 128.24.0.0/22 area 1 are incorrect because they require a bitmask, not a CIDR notation. The commands 128.24.0.0 0.0.254.255 area 0 and network 128.24.0.0 255.254.255 area 1 are incorrect because the bitmask is incorrect. The command network 128.24.0.0 0.0.255.255 is incorrect because it does not specify the area.

ospf
wildcard-mask
summarization
network-command
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