💻 Computer Science

What is the main purpose of a firewall in a home or office network?

A To speed up internet browsing by caching frequently visited websites.
B To block unauthorized access to a private network and monitor incoming/outgoing traffic.
C To provide wireless internet connectivity to all devices.
D To store backups of all network data in case of a system failure.

✓ Correct Answer: Option B

A firewall acts as a barrier, filtering network traffic to prevent unauthorized access to a private network, protecting against various cyber threats by controlling which data packets are allowed in or out.

💡 Why is B) the correct answer?

The correct answer to the question "What is the main purpose of a firewall in a home or office network?" is Option B: To block unauthorized access to a private network and monitor incoming/outgoing traffic..

The other options — A) To speed up internet browsing by caching frequently visited websites., C) To provide wireless internet connectivity to all devices., D) To store backups of all network data in case of a system failure. — are incorrect for this Computer Science question. As explained above: A firewall acts as a barrier, filtering network traffic to prevent unauthorized access to a private network, protecting against various cyber threats by controlling which data packets are allowed in …

📚 About This Computer Science Practice Question

This 3-level Computer Science question from the Computer Security & Viruses topic is part of One Paper Preparation's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free Computer Science practice test or use flashcards for spaced repetition review.

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