Difference between Hub and Switch

Prerequisite – Network Devices
Hub:
Hub is a networking devices which is used to transmit the signal to each port (except one port) to respond from which the signal was received. Hub is operated on Physical layer. In this packet filtering is not available. It is of two types: Active Hub, Passive Hub.

Switch:
Switch is a network device which is used to enable the connection establishment and connection termination on the basis of need. Switch is operated on Data link layer. In this packet filtering is available. It is type of full duplex transmission mode and it is also called efficient bridge.

Difference between Hub and Switch:

S.NO HUB SWITCH
1. Hub is operated on Physical layer. While switch is operated on Data link layer.
2. Hub is a broadcast type transmission. While switch is a Unicast, multicast and broadcast type transmission.
3. Hub have maximum 4 ports. While switch can have 24 to 28 ports.
4. In hub, there is only one collision domain. While in switch, different ports have own collision domain.
5. Hub is a half duplex transmission mode. While switch is a full duplex transmission mode.
6. In hub, Packet filtering is not provided. While in switch, Packet filtering is provided.
7. Hub cannot be used as a repeater. While switch can be used as a repeater.
8. Hub is not an intelligent device hence it is comparatively inexpensive. While switch is an intelligent device so it is expensive.
9. Hub is simply old type of device and is not generally used. While switch is very sophisticated device and widely used.
10. Hacking of systems attached to hub is complex. Hacking of systems attached to switch is little easy.

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