Beginner
Computer Networks
Q17 / 100
What is a subnet mask?
Correct! Well done.
Incorrect.
The correct answer is B) A 32-bit number that divides an IP address into network and host portions
B
Correct Answer
A 32-bit number that divides an IP address into network and host portions
Explanation
Subnet mask 255.255.255.0 (/24 in CIDR) means the first 24 bits are the network portion and the last 8 bits identify hosts within that subnet (256 addresses).
Progress
17/100