What Is a Switch In Networking Used For?
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A switch in networking is used to connect multiple computers, servers, printers and other network devices together in a local area network (LAN). Switches allow devices connected to the same network to communicate with each other by forwarding data packets between connected devices. They create a separate collision domain for each device, allowing for simultaneous transmission between each port. Switches are also capable of dynamically learning the media access control (MAC) addresses of other devices on the network, thus providing segmentation of that network by isolating devices connected at different ports.