What is HUB?

A HUB is a device which connects various machines in a network.


It’s major function is to replicate data it receives from one device attached to it.


Hub is "Signal Splitter"


Operates in "Physical Layer"


“Collisions” will occur in hub and it listen for collision domains.


Hub is “Half-duplex“(can receive or forward only)


Also known as ” Concentrator”


Types,


Passive (splitter)


Active (signal boosting)


Intelligent (manageable)