_________ is a networking device that operates at the data link layer of the OSI model.
- Firewall
- Hub
- Router
- Switch
A switch is a networking device that operates at the data link layer (Layer 2) of the OSI model. It connects devices within a local area network (LAN), using MAC addresses to forward data to the correct destination. Unlike hubs, switches can identify the intended recipient of the data and send it only to that device, reducing unnecessary network traffic. Switches are crucial for modern Ethernet networks as they improve network performance and security.
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