Given two /24 networks, 192.168.10.0/24 and 192.168.11.0/24, what is the summarized route and prefix length?

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Multiple Choice

Given two /24 networks, 192.168.10.0/24 and 192.168.11.0/24, what is the summarized route and prefix length?

Explanation:
Combining adjacent networks uses the longest common prefix across their addresses. Here, the two /24 networks share the same first two octets (192.168) and their third octets are 10 and 11. In binary, 10 is 00001010 and 11 is 00001011; they differ only in the least significant bit, so they have a common 23-bit prefix. The appropriate summary is 192.168.10.0/23, which covers from 192.168.10.0 through 192.168.11.255. This is the most specific supernet that includes both original networks. So the summarized route is 192.168.10.0/23.

Combining adjacent networks uses the longest common prefix across their addresses. Here, the two /24 networks share the same first two octets (192.168) and their third octets are 10 and 11. In binary, 10 is 00001010 and 11 is 00001011; they differ only in the least significant bit, so they have a common 23-bit prefix. The appropriate summary is 192.168.10.0/23, which covers from 192.168.10.0 through 192.168.11.255. This is the most specific supernet that includes both original networks.

So the summarized route is 192.168.10.0/23.

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