Answer / Gyanendra Kumar

Hub, Switch, Router: These three networking devices serve different purposes within a network. Here's the main difference:n
1. Hub: A hub is an outdated device that connects multiple computers together in a star topology. It functions by broadcasting all incoming data to every connected device, regardless of whether it is intended for that device or not.n
2. Switch: A switch is a more advanced version of a hub. Instead of broadcasting data, it analyzes the MAC address of the incoming data and sends it only to the intended recipient. This improves network performance by reducing collisions and improving bandwidth utilization.n
3. Router: Unlike a hub or switch, a router is used for connecting different networks together, such as a LAN (Local Area Network) and WAN (Wide Area Network). A router not only forwards data based on MAC addresses but also considers network layer information like IP addresses to direct traffic between networks.

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