There were two phone screen interviews before the on-site.

Apple arranged my on-site interview at Cupertino.

There were five major rounds.

Though the position was for QA, there was one round with the developer.

There was also an interview with managers, who asked behavioral questions.

In short, the interview was good, but they rejected me because they found someone with better experience.

Embedded Questions:

When you press a button, how does a microcontroller sample the button input so that it only reads it once, rather than many times?