What is the difference between a hub and a switch?

Hub Switch
When a hub receives a packet of data from a connected device, it broadcasts that data packet to all other connected devices regardless of which one ends up being the final destination. When a switch receives a packet of data, it determines what computer or device the packet is intended for and sends it to that computer only.
Collisions occur commonly in setups using hubs. No collisions occur in a full-duplex switch.
Hubs are classified as Layer 1 (Physical Layer) devices per the OSI model. Network switches operate at Layer 2 (DLL) of the OSI model.
A network hub cannot learn or store MAC address Switches use content accessible memory CAM table which is typically accessed by ASIC (Application Specific integrated chips).

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