PHYSICAL LAYER AND TRANSMISSION MEDIA
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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copper
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wireless
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fiber-optic
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None of the above
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Detailed explanation-1: -fiber-optic Fiber-optic cables use patterns of light to represent bits . Which media uses electrical pulses to represent bits? copperElectrical pulses are used to represent bits on networks using coppercable media.
Detailed explanation-2: -For copper cable media, the signals are patterns of electrical pulses. For fiber, the signals are patterns of light. For wireless media, the signals are patterns of radio transmissions.
Detailed explanation-3: -Fiber-optic cable is the most expensive of the three types discussed in this lesson, but it supports higher rate line speeds. Fiber-optic cable does not carry electrical impulses as copper wire does. Instead, signals that represent bits are converted into pulses of light.