What is the subnet mask typically used in hands-on network configurations?

The subnet mask commonly used in hands-on network configurations is 255.255.255.0. This subnet mask allows for the creation of a Class C network, which is ideal for small local area networks (LANs). With this particular subnet mask, a total of 256 addresses can be assigned, with 254 usable for devices. It is widely utilized in home networks and small business environments due to its balance between simplicity and effective address space.

Moreover, it facilitates easy management and segmentation of devices on the same network. This makes it a favored choice for instructional settings and practical exercises where networking is being demonstrated or practiced. In contrast, the other options either refer to broader networking configurations or specific addresses, which are not typically used as subnet masks in standard hands-on scenarios.