What is a 'virus' in computer technology? MCQ with Answer and Explanation

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What is a 'virus' in computer technology?

A. A hardware component

B. An operating system update

C. A cloud storage service

D. A type of malicious software

Answer: Option D

Solution (By JKSSB Mock Tests)

A computer virus is a type of malicious software that replicates itself to damage files or systems.

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Question #1

The first successful cloning of an animal was done with:

A. A frog

B. A mouse

C. Dolly the Sheep

D. A cow

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Correct Answer: Option C

Explanation:
Dolly was the first mammal cloned from an adult somatic cell in 1996.

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Question #2

The Green Revolution in India is associated with:

A. Homi Bhabha

B. M.S. Swaminathan

C. Vikram Sarabhai

D. A.P.J. Abdul Kalam

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Correct Answer: Option B

Explanation:
Dr. M.S. Swaminathan is known as the Father of Green Revolution in India.

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Question #3

Which of these is a major source of greenhouse gas emissions?

A. Fossil Fuel Burning

B. Planting Forests

C. Solar Panel Manufacturing

D. Electric Cars

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Correct Answer: Option A

Explanation:
Burning coal, oil, and gas for electricity and transport is a leading cause of emissions.

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