CompTIA A+ Core 1 (220-1001) — Question 71

A customer has the LCD display in a laptop replaced. After the repair, the customer notices the laptop is showing a weaker WiFi signal than before the display was replaced.
Which of the following BEST explains the lower WiFi signal?

Answer options

• A. The antenna is too close to the screen's power inverter.
• B. The new LCD panel is causing interference.
• C. The digitizer is calibrated improperly.
• D. The radio antennas are damaged.

Correct answer: B

Explanation

The correct answer is B because the new LCD panel can introduce interference with the WiFi signal, leading to lower performance. Options A, C, and D are less likely; proximity to the power inverter typically does not cause signal issues, improper calibration of the digitizer does not affect WiFi, and no information indicates that the antennas are damaged.