Which of the following is the best way of protecting important data against virus attack?

Which of the following is the best way of protecting important data against virus attack?

A.
Implementing a firewall.

B.
Updating the anti-virus software regularly.

C.
Taking daily backup of data.

D.
Using strong passwords to log on to the network.

Explanation:

Updating the anti-virus software regularly is the best way of protecting important data against virus
attack.