A technician is troubleshooting a customer’s computer that will not turn on. The user stated that
the computer was working fine until there was a thunderstorm the other night. Which of the
following tools would the technician use to determine what is wrong with the computer?

A.
Factory diagnostic CD

B.
POST card

C.
Toner probe

D.
Power supply tester

Explanation:
http://pcsupport.about.com/od/toolsofthetrade/f/powersupplytest.htm