Multiple choice

Firewall is used in PC for

  1. authentication

  2. security

  3. data transmission

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 Firewall is one of the best ways to protect your computer network.

Network firewalls get the name from physical walls which prevent fire spreading from one section of a building to another. In these, walls are structures which strictly control access from one side to another and in this case it is another form of PC security.

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