What is NOT considered a physical threat to a network?

OS holes

Destruction of property

Eavesdropping

Dumpster diving

Question $68(3$ points$)$

What is the most effective measure to prevent a computer from being exposed to a virus?

$$ Insert a password protected USB device into the computer

Install a high$-$quality anti$-$virus software program

Use an air$-$gapped computer

Clear the computer's cache and cookies on a regular basis