220-1101 / 1102 Domain 1: Mobile Devices

Which TWO are common mobile device display issues? (Select TWO.)

Multiple response — select two or more answers

Answer choices

  1. a. Ghost touch
  2. b. Dead pixels
  3. c. RAID degradation
  4. d. POST beep codes
  5. e. Burn-in on OLED

Architectural breakdown & explanation

Touch, pixel defects, and OLED burn-in are mobile display concerns.

Correct answer(s): a. Ghost touch, b. Dead pixels, e. Burn-in on OLED

Exam domain: Domain 1: Mobile Devices (15% weight on the official guide).

Official documentation & study links

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