Networking - What is Network Mask?

What is Network Mask?

- A network mask is used for determination of what subnet an IP address belongs to.

- An IP address has network address and the host address.

- The first two numbers represents the network address and the second two numbers represents the host of the network.

- It is used in computer networking to define the class and range of the Internet Protocol (IP) address.

- It provides the available number range of the Ip addresses from Class A to Class C and a mask is specified to divide these networks into the sub-networks.

- Generally a netmask and subnet are used alternatively.

- Subnets are created after netmask is applied.
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