Which subnet mask corresponds to the address 192.168.0.0/24?

The address 192.168.0.0/24 uses CIDR (Classless Inter-Domain Routing) notation, where the "/24" signifies that the first 24 bits of the address are reserved for the network portion, while the remaining bits are for host addresses.

In this case, a subnet mask corresponding to a /24 designation indicates that the first three octets, or the first 24 bits, are set to 255 (which in binary is 11111111.11111111.11111111), while the last octet (the final 8 bits) is set to 0, resulting in the subnet mask of 255.255.255.0. This subnet mask allows for 256 IP addresses in total (from 192.168.0.0 to 192.168.0.255), with 254 usable addresses for hosts (since the first address is reserved for the network and the last one for the broadcast).

This understanding of subnetting is foundational for network design, as it allows for efficient allocation of IP addresses and proper network segmentation.