Which communication technology is used in contactless smart cards? MCQ with Answer and Explanation

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Which communication technology is used in contactless smart cards?

A. DTH

B. VSAT

C. NFC

D. Telegraph

Answer: Option C

Solution (By JKSSB Mock Tests)

Near Field Communication (NFC) is used in contactless payment cards and smart cards.

This question belongs to: Geography GK Transport and Communication

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Question #1

Which organization develops and maintains India's inland waterways infrastructure?

A. TRAI

B. IWAI

C. AAI

D. NHAI

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Correct Answer: Option B

Explanation:
The Inland Waterways Authority of India (IWAI) develops and regulates inland waterways.

This question belongs to: Geography GK Transport and Communication

Question #2

Which Indian railway zone has its headquarters at Jaipur?

A. Northern Railway

B. Western Railway

C. West Central Railway

D. North Western Railway

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Correct Answer: Option D

Explanation:
North Western Railway (NWR) is headquartered at Jaipur and serves Rajasthan and adjoining regions.

This question belongs to: Geography GK Transport and Communication

Question #3

Which technology is used for video conferencing over the internet?

A. Telegraph

B. Courier

C. VoIP

D. Postal Mail

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Correct Answer: Option C

Explanation:
Voice over Internet Protocol (VoIP) enables voice and video communication over internet networks.

This question belongs to: Geography GK Transport and Communication

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