PHYSICAL LAYER AND TRANSMISSION MEDIA
TRANSMISSION MEDIA
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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magnetic pulses
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light pulses
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electricity
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None of the above
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Detailed explanation-1: -Fiber optics, or optical fiber, refers to the technology that transmits information as light pulses along a glass or plastic fiber. A fiber optic cable can contain a varying number of these glass fibers–from a few up to a couple hundred. Another glass layer, called cladding, surrounds the glass fiber core.
Detailed explanation-2: -Fiber optic cable is made of many thin strands of coated glass fibers. Each measures about eight microns-that’s smaller than a strand of human hair. Digitized information is “coded, ‘’ or placed on to light pulses for transmission. It travels along the glass fiber at the speed of light-186, 000 miles per second.
Detailed explanation-3: -Fiber optics (optical fibers) are long, thin strands of very pure glass about the size of a human hair. They are arranged in bundles called optical cables and used to transmit signals over long distances. Fiber optic data transmission systems send information over fiber by turning electronic signals into light.
Detailed explanation-4: -Fiber optics is the technology used by internet services such as Verizon Fios home internet to transmit information as pulses of light through strands of fiber made of glass or plastic over long distances.