COMPUTER NETWORKING

PHYSICAL LAYER AND TRANSMISSION MEDIA

TRANSMISSION MEDIA

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Fibre optic cables consist of very fine strands of glass or plastic fibre; transmitting data via
A
magnetic pulses
B
light pulses
C
electricity
D
None of the above
Explanation: 

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.

There is 1 question to complete.