Which subnet mask corresponds to a /24 CIDR block in IPv4 addressing?

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Multiple Choice

Which subnet mask corresponds to a /24 CIDR block in IPv4 addressing?

Explanation:
In IPv4 CIDR notation, /24 means the first 24 bits are network bits, which translates to three full 255 octets in the subnet mask and a zero in the last octet. So the mask is 255.255.255.0. This sets up a network with 256 addresses total (254 usable for hosts). Other masks correspond to different prefix lengths: 255.0.0.0 is /8, 255.255.0.0 is /16, and 255.255.255.255 is /32 for a single host.

In IPv4 CIDR notation, /24 means the first 24 bits are network bits, which translates to three full 255 octets in the subnet mask and a zero in the last octet. So the mask is 255.255.255.0. This sets up a network with 256 addresses total (254 usable for hosts). Other masks correspond to different prefix lengths: 255.0.0.0 is /8, 255.255.0.0 is /16, and 255.255.255.255 is /32 for a single host.

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