Your company has a branch office that contains 1,000 computers. You need to select a network address that supports 1,000 computers in the same subnet. The solution must minimize the number of unused addresses in the subnet.
Which address range should you configure?
A.
172.16.0.0/16
B.
172.16.0.0/18
C.
172.16.0.0/22
D.
172.16.0.0/24
The correct answer is C. The /22 is network ID (22 bits) and the rest is the host portion (10 bits). Then, 2^10=1024 -2 = 1022 hosts.