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Switch Definition: A switch is a networking device that forwards data packets between devices on a local area network (LAN) based on the Media Access Control (MAC) addresses in the packets.
A switch is a network device that operates at the data link layer of the OSI model and is responsible for forwarding data packets between devices within a local area network (LAN). Switches use MAC addresses to determine the appropriate path for incoming data packets, thereby efficiently directing traffic to the intended recipient and optimizing network performance.