Computer Science
Assertion. Hubs and switches can be replaced.
Reason. While a hub is a broadcast device, a switch is a unicast device.
Computer Networks
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Answer
(b)
Both Assertion and Reason are true but Reason is not the correct explanation of Assertion.
Explanation
Both hubs and switches are used to connect multiple devices in a network. Hence they are replaceable with each other. Switches offer more efficient data transmission compared to hubs because they can direct data specifically to the intended device connected to it, unlike a hub that just sends data to all connected devices. This makes a switch more efficient for managing network traffic. Therefore, a hub is a broadcast device, a switch is a unicast device.
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