Apple RF Systems Engineer interview questions

I interviewed at campus after career fair. Recruiter was really nice, but the whole process was technical questions. I did not have a lot RF classes at that time, so did not get the job.

I applied months back, and got an email from a technical recruiter in August. A "30 minute" phone interview was scheduled about a week later. I prepared for the interview, including reading the prior interviews on Glassdoor, and when they called (5 to 10 minutes late from the scheduled time), I was interviewed by an Asian lady from outside San Diego who was extremely difficult to understand. Panic sets in as I don't have a clue what she is asking me, despite my years of experience of working with engineers from foreign (Asian) countries. I had to have her repeat questions a couple of times due to the broken English. The interview only lasted 10 minutes.