Why do we use Subnet mask? What are its uses?

Submitted by: Administrator
Subnet mask is use to isolate the network ID and Host ID. e.g. - if an IP is 192.168.0.1 then the default subnet is 255.255.255.0 because it is a C Class Address C Class Add. Have three network octate and one host octate i.e.

Network ID: 192.168.0.0

Host ID : 0.0.0.1
Submitted by: Administrator

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