Which of the following devices operates primarily at the Physical Layer of the OSI model?
Options
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A.
Router
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B.
Repeater
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C.
Switch
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D.
More than one of the above
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E.
None of the above
Correct Answer (Detailed Explanation is Below)
B.
Repeater
Detailed Explanation
Explanation: A
Repeater operates at the Physical Layer (Layer 1) of the OSI model. It regenerates or amplifies signals to extend the transmission distance.