What is the purpose of a firewall in network security? MCQ with Answer and Explanation

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What is the purpose of a firewall in network security?

A. To block unauthorized access to a network

B. To store backup files

C. To enhance graphic display

D. To speed up internet connection

Answer: Option A

Solution (By JKSSB Mock Tests)

A firewall monitors and controls incoming and outgoing network traffic based on security rules.

This question belongs to: Static General Knowledge Science and Technology

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Which of these is a common renewable power source?

A. Wind energy

B. Coal

C. Natural gas

D. Petroleum

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Correct Answer: Option A

Explanation:
Wind energy is generated using turbines and is a major renewable source.

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Question #2

Which planet is the second from the sun?

A. Mars

B. Earth

C. Mercury

D. Venus

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Correct Answer: Option D

Explanation:
The order of planets is Mercury, Venus, Earth, Mars, etc.

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Question #3

In computing, what does the acronym 'GPU' stand for?

A. General Processing Unit

B. Global Processing Utility

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Correct Answer: Option C

Explanation:
GPUs are essential for rendering graphics and are now widely used in training AI models.

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