What is the default subnet mask for a Class C IP address?

The default subnet mask for a Class C IP address is 255.255.255.0. This is a standard setting for Class C networks, which typically support up to 254 usable IP addresses in a single subnet, providing a straightforward way to manage smaller networks.

Understanding the significance of the subnet mask is crucial for network segmentation and addressing. In Class C addresses, the first three octets (the 255.255.255) represent the network part of the address, while the last octet (the 0) represents the host part. This structure allows for efficient routing and management within network configurations.

The other options represent subnet masks for different classes of IP addresses or specific purposes. For example, 255.0.0.0 is the default subnet mask for Class A addresses, which allows for a much larger number of hosts. Similarly, 255.255.0.0 is used for Class B addresses, which also supports a greater number of hosts than Class C. The mask 255.255.255.255 is used for a special purpose called a "broadcast" address, which targets all devices on a local network segment and does not denote a subnet for Class C addressing. Understanding these distinctions helps in appropriately designing and