It uses physical device address in each incoming message
Answer (2)
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A "physical device address" in a network message refers to a unique identifier called a MAC address, and the device that uses it to direct incoming messages based on this address is a network switch; essentially, a switch examines the MAC address within each incoming message to determine which port to send the data to, ensuring it reaches the intended device on the network. It uses physical device addresses in each incoming messages so that it can deliver the message to the right destination or port. Unlike a hub, switch doesn't broadcast the received message to entire network, rather before sending it checks to which system or port should the message be sent. Hope it helps :)
