What is the difference between a Switch and a Router?

A Switch operates at Layer 2 of the OSI model and is used to connect devices within a local area network. It forwards data based on MAC addresses and is primarily used to improve network performance by creating dedicated connections between devices.

A Router operates at Layer 3 of the OSI model and is used to connect different networks together. It forwards data based on IP addresses and makes decisions on the best path for data to reach its destination. Routers are also responsible for network addressing and routing.

In summary, a Switch is used to connect devices within a network, while a Router is used to connect multiple networks together.