Which technology is used in contactless payments? MCQ with Answer and Explanation

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Which technology is used in contactless payments?

A. Bluetooth

B. NFC

C. LiDAR

D. Wi-Fi

Answer: Option B

Solution (By JKSSB Mock Tests)

NFC enables contactless transactions.

This question belongs to: Static General Knowledge Science and Technology

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Question #1

LVM3 is associated with which Indian mission?

A. Gaganyaan

B. Mars Orbiter

C. Both

D. Chandrayaan-3

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Correct Answer: Option C

Explanation:
LVM3 (formerly GSLV Mk III) is used for heavy-lift missions including Gaganyaan.

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Question #2

What is a 'Cloud Computing' service model where resources are provided over the internet?

A. SaaS (Software as a Service)

B. Hardware Storage

C. Local Database

D. CD-ROM

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Correct Answer: Option A

Explanation:
SaaS allows users to access software applications over the internet via a subscription.

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Question #3

Gaganyaan is India's planned:

A. Human spaceflight programme

B. Satellite navigation system

C. Lunar rover

D. Mars mission

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Correct Answer: Option A

Explanation:
Gaganyaan aims to send Indian astronauts to space.

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