Apple Verification Design Engineer interview questions

One phone interview followed by onsite interview with 5 rounds. Onsite interviews were half an hour each including one lunch interview. The HR got back to me a week after my interview with an offer.

I applied online and also sent mails to Recruiters. Setup 2 interviews for 2 different teams. Both the managers are interested in getting me onsite while i chose the one that i was more interested in(Apple rule is to choose one). Onsite Interview was scheduled after a almost 4 weeks. Interview experience is good but i did well in many rounds except one. One of the interviewer was very young and i did not understand her questions. I have to say they were poorly articulated and interviewer did a poor job explaining me. Finally got the mail saying that it was a tough decision and unfortunately they do not want to proceed. Surely I learnt something even though I did not get the offer but I still feel that part of it was due to Interviewer poor sense.