A switch is a device used in networks to connect multiple devices like computers and printers. It helps these devices communicate with each other efficiently. Here’s how it works: 1. **Learning**: When a device sends data, the switch learns the device's address and remembers which port it's connected to. 2. **Forwarding**: When data comes in, the switch checks its memory to see where to send it. If it knows the destination, it sends the data directly. If not, it sends the data to all connected d