Clarke is trying to come up with a subnet mask so that three servers with the IP addresses 172.16.31.10, 172.16.30.15, and 172.16.31.206 are in the same network. Which of the following subnet masks will accommodate this requirement?
A) 255.255.255.0
B) 255.255.255.128
C) 255.255.255.192
D) 255.255.254.0

Question

Quizplus · Accepted Answer

The subnet mask 255.255.254.0 (option D) allows for the IP addresses 172.16.31.10, 172.16.30.15, and 172.16.31.206 to be in the same subnet. This mask provides for a range from 172.16.30.0 to 172.16.31.255, encompassing all three addresses.

Clarke Is Trying to Come Up with a Subnet Mask