how many usable IP addresses would be in that subnet?

Given a subnet mask of 255.255.255.0, how many usable IP addresses would be in that subnet?

A.
250

B.
254

C.
255

D.
256

Explanation:

TheSubnet Maskhowever, determines the “class” of a Network. 255.255.255.0 is a “Class C”
network.A class c network can host up to 254 pc’s