The subnet mask for a particular network is 255.255.31.0.

Home » Computer Networks » Computer networks miscellaneous » 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?

1. 172.57.88.62 and 172.56.87.233
2. 10.35.28.2 and 10.35.29.4
3. 191.203.31.87 and 191.234.31.88
4. 128.8.129.43 and 128.8.161.55

Correct Option: D

Refer the two tables below to find the class of the given subnet mask IP Address Class Network and Host Capacities

Hence, the given subnet mask — 255.255.31.0 is a class B network.
Now, the range of a class B network is from 128.0.0.0 (lowest) to 191.255.0.0 (Highest). The two values/IP addresses whose range are 191.203.31.87 and 191.234.31.88