Which communication technology forms the basis of QR code payments? MCQ with Answer and Explanation

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Which communication technology forms the basis of QR code payments?

A. Optical Data Recognition

B. Microwave

C. Satellite Link

D. Telegraph

Answer: Option A

Solution (By JKSSB Mock Tests)

QR code systems use optical scanning and digital data recognition technologies.

This question belongs to: Geography GK Transport and Communication

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Question #1

Which Indian port handles the maximum container traffic?

A. Mumbai Port

B. Kandla Port

C. Jawaharlal Nehru Port

D. Chennai Port

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Correct Answer: Option C

Explanation:
Jawaharlal Nehru Port (Nhava Sheva) is India's largest container handling port.

This question belongs to: Geography GK Transport and Communication

Question #2

Which is the deepest port in India?

A. Paradip Port

B. Kochi Port

C. Mundra Port

D. Visakhapatnam Port

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Correct Answer: Option D

Explanation:
Visakhapatnam is one of the deepest ports in India and can accommodate large vessels.

This question belongs to: Geography GK Transport and Communication

Question #3

Which railway zone has its headquarters at Chennai?

A. South Central Railway

B. Southern Railway

C. South Western Railway

D. East Coast Railway

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Correct Answer: Option B

Explanation:
Southern Railway is headquartered at Chennai and is one of the oldest railway zones.

This question belongs to: Geography GK Transport and Communication

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