220-1101 / 1102 Domain 1: Mobile Devices

Which mobile troubleshooting step clears stuck network registration?

Multiple choice — select one answer

Answer choices

  1. a. Active stylus
  2. b. Facial recognition (Face ID class)
  3. c. 30-pin dock connector
  4. d. Toggle airplane mode or reseat SIM

Architectural breakdown & explanation

Airplane mode resets the cellular radio registration.

Correct answer(s): d. Toggle airplane mode or reseat SIM

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

Official documentation & study links

Practice this certification

This page is one question from the CompTIA A+ bank. Run a full timed practice exam with domain-weighted random questions in your browser.