FUNDAMENTALS OF COMPUTER

WEB BROWSERS TECHNOLOGY

WORLD WIDE WEB

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which type of cable uses light pulses to send data?
A
Broadband
B
Fiber-optic cable
C
DSL
D
3G/4G
Explanation: 

Detailed explanation-1: -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-2: -Laser light is used for optical fiber communications for the simple reason that it is a single wavelength light source.

Detailed explanation-3: -An optical transceiver is a small yet powerful device that can both transmit and receive data. In fiber optics, this data is sent in the form of pulses of light over an optical fiber, at very high speeds and across long distances.

Detailed explanation-4: -There are two types of fibre optic cables – multimode and single-mode. Multimode optical fibre or OFC is capable of carrying multiple light rays (modes) at the same time as it has varying optical properties at the core. Single-mode fibre has a much smaller core size (9 microns).

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