I think something is wrong. "What happens if you need eight subnets in your Class C network? By using the calculation of 2x ( x as exponent), where x is the number of subnet bits, you would need 3 ...

Devices also have a subnet mask, which defines which part of the IP address belongs to the network and which part belongs to the device. The gateway, also called a default gateway, is the device ...

See subnet mask and subnet. Summary of Classes A, B & C There are very few Class A networks, but each one can contain thousands of subnets and hosts (defined in 24 bits).