Which device is commonly used to connect multiple computers within a Local Area Network (LAN)?

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**Solution:**

1. A **Switch** is a device designed to connect multiple computers or devices within a Local Area Network (LAN). It functions at the data link layer (Layer 2) of the OSI model and forwards data specifically to the device intended by using MAC addresses.

2. Unlike a hub, which broadcasts data to all devices, a switch sends data only to the recipient device, reducing network congestion and improving efficiency.

3. A **Router** connects different networks, such as linking a LAN to the internet, and operates at the network layer (Layer 3).

4. A **Modem** converts digital signals to analog for internet connectivity, typically used in Wide Area Networks (WANs), not for internal LAN connections.

5. A **Repeater** amplifies or regenerates signals to extend transmission distance but does not connect multiple devices within a LAN.

**Answer:** Switch

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