What is the best means of prevention against viruses?

What is the best means of prevention against viruses?
A . Assign read only permission to all files on your system.
B . Remove any external devices such as floppy and USB connectors.
C . Install a rootkit detection tool.
D . Install and update anti-virus scanner.

View Answer

Answer: D

Explanation:

Although virus scanners only can find already known viruses this is still the best defense, together with users that are informed about risks with the internet.