A Class C network that uses 4 bits for the subnet ID can have up to _____ hosts in each subnet.
A) 14
B) 12
C) 16
D) 65,000
E) 4

Question

Quizplus · Accepted Answer

A Class C network has a default subnet mask of 255.255.255.0, which provides 8 bits for host addresses. If 4 bits are used for the subnet ID, that leaves 4 bits for host addresses. However, 2 addresses (all zeros and all ones) are reserved for the network address and broadcast address, respectively. Therefore, 2^4 - 2 = 14 hosts can be supported in each subnet.

A Class C Network That Uses 4 Bits for the Subnet