Which communication technology uses light signals through glass fibers? MCQ with Answer and Explanation

Which communication technology uses light signals through glass fibers?
A. Optical fiber communication
B. Telegraph
C. Satellite communication
D. Radio waves
Answer: Option A
Solution (By JKExamLibrary)
Optical fiber communication uses light pulses through glass fibers for high-speed data transmission.

This question belongs to: Geography GK Transport and Communication

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Question #1 Report Error
Which Indian port is famous for exporting iron ore from Karnataka?
A. Tuticorin Port
B. Kochi Port
C. Paradip Port
D. New Mangalore Port

Correct Answer: Option D


Explanation:
New Mangalore Port handles significant iron ore exports from Karnataka.

This question belongs to: Geography GK Transport and Communication
Question #2 Report Error
Which transport mode is most used for international trade?
A. Waterways
B. Roadways
C. Airways
D. Railways

Correct Answer: Option A


Explanation:
Water transport is the most widely used mode for international trade due to low cost.

This question belongs to: Geography GK Transport and Communication
Question #3 Report Error
The headquarters of North East Frontier Railway is located at:
A. Maligaon
B. Guwahati
C. Agartala
D. Shillong

Correct Answer: Option A


Explanation:
The headquarters of Northeast Frontier Railway (NFR) is situated at Maligaon near Guwahati.

This question belongs to: Geography GK Transport and Communication