I applied through college or university. I interviewed at Arizona State University
Interview
Usually two people will interview you (your supervisor and the assistant director). They ask about 5-6 questions. Behavioral and Application process questions. They are super nice so you don't have to be nervous. I remember the first questions was tell me about yourself.
Interview questions [1]
Question 1
Could you describe what's the process of an international student getting admission from ASU? (TOEFL/IELTS/I-20)