Multiple choice technology security

What is an Internet firewall?

  1. Asbestos cloth that protects your computer from open flames

  2. A strong password

  3. Software or hardware that helps protect your computer against malicious attacks, such as computer viruses

  4. A lock you can place on your computer to prevent unauthorized people from using it

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

A firewall is software or hardware that protects against malicious attacks by filtering network traffic. Options A, B, and D are incorrect - A is nonsensical (firewalls aren't literal fire protection), B is authentication, and D is physical security.