Computer Science
Assertion. A hub can also act as an amplifier at times.
Reason. An active hub is capable of amplifying the signal during transmission while a passive hub merely lets the signal pass through it.
Computer Networks
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Answer
(a)
Both Assertion and Reason are true and Reason is the correct explanation of Assertion.
Explanation
A hub can also act as an amplifier at times. Hubs can function as either passive or active devices. Active hubs electrically amplify the signal as it moves from one connected device to another. While passive hubs allow the signal to pass from one computer to another without any change.
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