A Certkiller .com user complains that foreign letters and numbers are appearing on screen while
he is typing on a laptop. What would the cause of this be?

A.
Num Lock is engaged.

B.
Caps Lock is engaged.

C.
F Lock is engaged.

D.
Scroll Lock is engaged.

Explanation:
Without a physical numerical keyboard the laptop has it’s numerical keyboard pasted over the
normal keyboard and accidentally pressing the numlock key will result in the problems
experienced by the user in the question.