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How does a computer get infected by virus ?


1. When a firewall is present
2. When antivirus software is active
3. When downloading unknown software from the internet
4. When working on MS Office software in the local computer

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Best answer
Correct Answer - Option 3 : When downloading unknown software from the internet

The correct answer is When downloading unknown software from the internet.

  • There are several ways a computer can get infected by a virus and most of them involve downloading either intentionally or unintentionallyinfected files.
  • Pirated music or movies, photos, free games and toolbars are common culprits, as are phishing/spammy emails with attachments. 
  • The computer can be protected from viruses by installing valid anti-virus software on our computer.


Types of Computer Virus:

  • Boot Sector Virus. 
  • Polymorphic Virus. 
  • Resident Virus. 
  • Multipartite Virus.
  • Web Scripting Virus 

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