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CBSE Class 9 Computer Applications Question 29 of 29

Cyber Safety — Question 8

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8
Question

Question 8

What does a firewall do ?

  1. prevents unauthorised access to your computer via the Internet
  2. stops you installing software that may harm your computer
  3. records everything you do on your computer
  4. runs checks every time to prevent virus attacks
Answer

prevents unauthorised access to your computer via the Internet

Reason — Firewall is a program that monitors all communications and traps all illicit packets. Thus, it prevents unauthorised access to your computer via the Internet.