Which communication medium converts data into light pulses for high-speed transmission?

Correct option is D

Optical fiber is a communication medium that transforms data into light pulses, allowing high-speed data transmission over long distances with minimal signal loss. This technology is widely used in telecommunications and internet infrastructure due to its high bandwidth capabilities.
Important Key Points:
1. High-Speed Transmission: Optical fiber offers significantly higher data transmission speeds compared to traditional cables.
2. Data as Light Pulses: Data is converted into light pulses, which travel through the fiber, reducing electromagnetic interference.
3. Long-Distance Efficiency: Optical fibers maintain signal integrity over long distances, making them ideal for wide-area networks (WANs).
Knowledge Booster:
· Copper Cable: Used for short-distance data transmission but cannot convert data into light pulses.
· Satellite: Used for wireless communication over large distances but relies on radio waves, not light pulses.
· Twisted-Pair Cable: Commonly used in local area networks (LANs) but does not utilize light for data transmission.
· Coaxial Cable: Typically used in cable television networks; it transmits data electrically, not optically.