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  • Mixed General Knowledge Quiz
  • Which is odd
Multiple choice general knowledge

Which is odd

  1. TrojanHorse

  2. Worms

  3. Firewall

  4. Virus

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

The firewall is the security measure designed to protect systems, while Trojan Horse, Worms, and Virus are all types of malicious software (malware) that attack systems. A firewall is a defensive security tool, not an attack mechanism like the others.

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