Why do computers need firewalls?
Show answer & explanation
Answer: Block unauthorized network access
Block unauthorized network access ✓ — Correct! Firewalls are network security systems monitoring incoming/outgoing traffic based on rules. They block: (1) Unauthorized access—hackers trying to connect. (2) Malicious traffic—attacks, exploits. (3) Unwanted connections—suspicious programs sending data out. Hardware firewalls (routers) and software firewalls (OS-level) work together. important first defense layer—prevents many attacks before they reach your system!
Increase storage capacity — Wrong. Firewalls don't affect storage. They're network security tools filtering traffic to prevent unauthorized access and attacks.
Improve graphics performance — Wrong. Firewalls handle network security, not graphics. They monitor and control network traffic based on security rules.
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