FUNDAMENTALS OF COMPUTER

TELECOMMUNICATIONS SYSTEMS

TYPES OF NETWORKS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these uses flexible strands of glass to transmit data?
A
dial-up
B
fiber optic
C
broadband
D
DSL
Explanation: 

Detailed explanation-1: -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.

Detailed explanation-2: -Silica glass is the most commonly used in manufacturing because it exhibits fairly good optical transmission over a wide range of wavelengths. Silica can be drawn into fibers at reasonably high temperatures and has a fairly broad glass transformation range.

Detailed explanation-3: -Fiber-optic cables transmit data via pulses of light. Optical fibers are very thin strands of glass or plastic less than 1/10 the thickness of a human hair.

Detailed explanation-4: -The short answer to why glass bends is that it does so only when the glass is very thin, and in the case of optical fiber, it bends so much better because it is very pure glass, manufactured with very few defects and with a pristine surface.

Detailed explanation-5: -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.

There is 1 question to complete.