What is the role of switch in a network

– A switch is a hardware networking device that connects multiple nodes, receives information from all nodes and sends it only to the selected node.
– A switch has multiple ports to connect with multiple nodes.
– A switch is called intelligent hub as it analyses and receives data and send it to intended node. A switch transmits data in duplex mode.
– A switch uses MAC Address to send data to selected node.
– A switch is active device.  It is equipped with network software.

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