In CIDR notation,the subnet mask 255.255.255.0 is represented by what prefix?
A) /21
B) /22
C) /23
D) /24

Question

​In CIDR notation,the subnet mask 255.255.255.0 is represented by what prefix?
A) ​/21
B) ​/22
C) ​/23
D) ​/24

Quizplus · Accepted Answer

The subnet mask 255.255.255.0 represents 24 bits set to 1 and 8 bits set to 0. In CIDR notation, the number of bits set to 1 in the subnet mask is represented by a slash followed by the number of bits, so the subnet mask 255.255.255.0 is represented by /24. Therefore, the correct answer is D.

​In CIDR Notation,the Subnet Mask 255

In CIDR Notation,the Subnet Mask 255