Assume a company with network IP address of 16 bits. Seven subnets should be created within a firm and the network administrator decided to borrow a minimal number of bits from the host part for the subnet creation. What is the subnet mask?
A) 255.255.224.0
B) 255.255.240.0
C) 255.255.0.0
D) 255.255.255.255
E) 255.255.255.192

Question

Quizplus · Accepted Answer

To create seven subnets, you need at least three bits (2^3 = 8, providing 8 subnets). Starting with a base mask of 255.255.0.0 (for 16 network bits), borrowing 3 bits for subnetting changes the mask to 255.255.224.0 (11100000 in the third octet).

Assume a Company with Network IP Address of 16 Bits