Rosita has configured a subnet mask of 255.255.252.0 for the new virtual private cloud she is creating for her organization. One of the junior administrators remarks that he's never seen that kind of a subnet mask before and isn't sure how many devices the subnet would hold. How many devices should Rosita tell him that it will support?
A) 1,024
B) 1,021
C) 1,022
D) 1,028

Question

Quizplus · Accepted Answer

The subnet mask 255.255.252.0 corresponds to a /22 prefix, which allows for 2^(32-22) = 2^10 = 1,024 total addresses. Subtracting 2 for the network and broadcast addresses, the subnet can support 1,022 devices.

Rosita Has Configured a Subnet Mask of 255