Which device is primarily used to connect multiple devices within a local area network (LAN)?

The primary device used to connect multiple devices within a local area network (LAN) is the switch. A switch operates at the data link layer of the OSI model, where it intelligently forwards data packets between devices on the same network based on their MAC addresses. This capability allows switches to create dedicated communication channels between devices, significantly reducing collisions and improving overall network performance.

Switches can handle multiple simultaneous connections, making them ideal for grouping devices like computers, printers, and servers within the same LAN. Unlike hubs, which simply broadcast incoming data to all connected devices, switches intelligently direct traffic only to the intended recipient, optimizing the network's efficiency.

While routers are essential for connecting different networks and managing traffic between them, they are typically not used solely within a LAN environment. Hubs, which operate at a basic level and simply relay data to all ports, are less common in modern networking due to their limitations compared to switches. Bridges can connect different network segments but do not function as central points for device connections within a LAN as effectively as switches do.