What is Blockchain primarily used for? MCQ with Answer and Explanation

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What is Blockchain primarily used for?

A. Weather forecasting

B. Rocket propulsion

C. Image editing

D. Secure transactions

Answer: Option D

Solution (By JKExamLibrary)

Blockchain is a decentralized ledger technology.

This question belongs to: Static General Knowledge Science and Technology

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Question #1 Report Error

LVM3 is also known as:

A. GSLV Mk III

B. SSLV

C. PSLV

D. RLV

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Correct Answer: Option A

Explanation:
LVM3 is the heavy lift launch vehicle of ISRO.

This question belongs to: Static General Knowledge Science and Technology

Question #2 Report Error

What is the primary technology behind Bitcoin and other cryptocurrencies?

A. Blockchain

B. Quantum Computing

C. Cloud Computing

D. Neural Networks

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Correct Answer: Option A

Explanation:
Blockchain is a distributed ledger technology that ensures secure and transparent transactions.

This question belongs to: Static General Knowledge Science and Technology

Question #3 Report Error

What technology powers contact tracing apps like Aarogya Setu?

A. LiDAR

B. Only Wi-Fi

C. Only NFC

D. Bluetooth and GPS

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Correct Answer: Option D

Explanation:
Bluetooth is primarily used for proximity detection.

This question belongs to: Static General Knowledge Science and Technology

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