Collision domain and broadcast domain


Please help to understand collision and broadcast domain.

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Collision domain means, how many users at a time can send data in a LAN network.

If Pc’s connected to Hub, one Pc at a time can send data that’s why hub collision domain is 1.

In case of a switch, all Pc can send data simultaneously so Switch collision domain is depend on the ports switch has.
24 port switch = 24 collision domain.

Broadcast domain means one lan network. You can divide broadcast domain by using Vlan network.