Question

The subnet mask for a particular network is 255.255.31.0 Which of the following pairs of IP addresses could belong to this network ?

• A. 10.35.28.2 and 10.35.29.4
• B. 172.57.88.62 and 172.56.87.23.2
• C. 191.203.31.87 and 191.234.31.88
• D. 128.8.129.43 and 128.8.161.55

Answer 1

The correct option is D 128.8.129.43 and 128.8.161.55

Subnet mask for a particular network, 255.255.31.0.

OR
We can say subnet mask is,
11111111.11111111.00011111.0.
So, only the set of IP addresses i.e. 128.8.129.43
and 128.8.161.55 belongs to this particular network.