CompTIA A+ 220-902 Question G-86

Multiple users have reported that there are black dots on the conference room LCD when doing presentations. Which of the following is MOST likely the problem?

A. The video card displaying to the LCD is incompatible.
B. The LCD has dead pixels.
C. The LCD needs to be recalibrated.
D. The conference room PC is overheating.

Correct Answer: B

CompTIA A+ Question F-50

A customer has left a computer monitor on over the weekend and now notices slight discoloration of the screen. This is an example of:

A. a failing backlight.
B. burn in.
C. a bad inverter.
D. dead pixels.
E. EMI.

Correct Answer: B