Which is the main use of optical fiber cables? MCQ with Answer and Explanation

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Which is the main use of optical fiber cables?

A. Road construction

B. Water supply

C. High-speed data transmission

D. Electricity generation

Answer: Option C

Solution (By JKExamLibrary)

Optical fiber cables are used for fast and reliable communication over long distances.

This question belongs to: Geography GK Transport and Communication

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Question #1 Report Error

Which communication invention was developed by Alexander Graham Bell?

A. Television

B. Telephone

C. Internet

D. Radio

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Correct Answer: Option B

Explanation:
Alexander Graham Bell is credited with inventing the telephone.

This question belongs to: Geography GK Transport and Communication

Question #2 Report Error

Which device is used to convert digital signals into analog signals for transmission over telephone lines?

A. Repeater

B. Switch

C. Router

D. Modem

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Correct Answer: Option D

Explanation:
A modem modulates and demodulates signals, converting digital data into analog signals and vice versa.

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Question #3 Report Error

Which waterway is declared as National Waterway-1 in India?

A. Brahmaputra River

B. Krishna River

C. Godavari River

D. Ganga River

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Correct Answer: Option D

Explanation:
The Ganga river between Allahabad and Haldia is National Waterway-1.

This question belongs to: Geography GK Transport and Communication

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