PHYSICAL LAYER AND TRANSMISSION MEDIA
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -The predominant method of transferring information internally in a computer is via parallel mode. Serial mode transmission is much faster than parallel mode transmission. With nonreturn to zero signaling, the voltage alternates between zero and a positive or negative voltage.
Detailed explanation-2: -Although single-mode optical fiber holds advantages in terms of bandwidth and reach for longer distances, multimode optical fiber easily supports most distances required for enterprise and data center networks, at a cost significantly less than single-mode.
Detailed explanation-3: -In full-duplex transmission mode, the communication between sender and receiver can occur simultaneously. The sender and receiver can both transmit and receive at the same time.