An organization has 100 subnets.The subnet part of the IP addresses in the organization must have at least _______ bits.
A)5
B)6
C)7
D)8

Question

Quizplus · Accepted Answer

To have 100 subnets, we need to have 2^7=128 subnets (because the number of subnets must be a power of 2 that is greater than or equal to 100). Therefore, we need at least 7 bits for the subnet part of the IP addresses, so that we can represent all 128 subnets. Choice A) and B) are too small to represent 128 subnets, and choice D) is more than we need (we only need 7 bits, not 8).

An Organization Has 100 Subnets