Question

which type of cable consists of a thin strand of glass that transmits pulsating beams of light rather than electric current?
a bluetooth
b fiber - optic
c twisted - pair
d coaxial

Explanation:

• Bluetooth: It is a wireless technology, not a cable.
• Fiber - optic: It consists of thin glass strands that transmit light.
• Twisted - pair: Transmits electric current (e.g., Ethernet cables).
• Coaxial: Also transmits electric current (e.g., for cable TV).

Answer:

B. Fiber - optic