单选题You have been asked to use a 25 bit subnet mask to segment the following network block: 209.18.12.0. How many usable will there be per subnet?（）A 2 hostsB 120 hostsC 126 hostsD 255 hosts
题目
单选题
You have been asked to use a 25 bit subnet mask to segment the following network block: 209.18.12.0. How many usable will there be per subnet?（）
A
2 hosts
B
120 hosts
C
126 hosts
D
255 hosts