Symptoms of computer virus attack include:

I. improved processing speeds;

Il. drive light coming up without a parent reason;

Ill. unexplainable printer activity;

IV. the disappearance or strange files appearance on screen

A. l, Il and Ill only
B. I, Ill and IV only
C. I, IIl and IV only
D. I, II, Ill and IV

Correct Answer:

Option C – I, IIl and IV only