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What is the significance of a firewall in cybersecurity?

5. What is the significance of a firewall in cybersecurity?

1. To prevent unauthorized physical access to a computer
2. To detect and remove malware from a computer
3. To protect a computer from unauthorized network access
4. To encrypt sensitive data on a computer

Answer: C) To protect a computer from unauthorized network access.

Explanation:

Firewalls are hardware or software-based security barriers that control incoming and outgoing network traffic.