Which communication system allows real-time global video conferencing? MCQ with Answer and Explanation

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Which communication system allows real-time global video conferencing?

A. Radio

B. Internet

C. Postal mail

D. Telegraph

Answer: Option B

Solution (By JKSSB Mock Tests)

Internet enables real-time video conferencing worldwide.

This question belongs to: Geography GK Transport and Communication

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Which city hosts the headquarters of North Western Railway?

A. Jodhpur

B. Ajmer

C. Bikaner

D. Jaipur

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Correct Answer: Option D

Explanation:
North Western Railway is headquartered in Jaipur, Rajasthan.

This question belongs to: Geography GK Transport and Communication

Question #2

Which is India's first railway station powered entirely by solar energy?

A. Guwahati

B. New Delhi

C. Katra

D. Howrah

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Correct Answer: Option C

Explanation:
Shri Mata Vaishno Devi Katra Railway Station became India's first fully solar-powered railway station.

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Question #3

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

A. Switch

B. Repeater

C. Modem

D. Router

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Correct Answer: Option C

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

This question belongs to: Geography GK Transport and Communication

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