Intermediate
Computer Networks
Q70 / 100
How do you calculate the number of usable hosts in a subnet given a CIDR prefix?
Correct! Well done.
Incorrect.
The correct answer is C) 2^(host bits) − 2, subtracting the network address and broadcast address from the total addresses in the subnet
C
Correct Answer
2^(host bits) − 2, subtracting the network address and broadcast address from the total addresses in the subnet
Explanation
A /26 subnet has 6 host bits, giving 2^6 = 64 total addresses. Subtracting the network address and broadcast address leaves 62 usable host addresses — the standard formula is 2^(host bits) − 2.
Progress
70/100