Why must a mobile app save its state when interrupted by a phone call?

  1. Because notifications need RAM
  2. Because the screen becomes larger
  3. Because the OS may pause or even kill the app while another app is in the foreground
  4. Because calls delete the app
Answer

C) Because the OS may pause or even kill the app while another app is in the foreground

Interruptions move the app to the background where the OS can stop or kill it, so the state must be saved.

Computer Science MCQ · More Introduction to Mobile Applications and Platforms MCQs · Practise