Amazon Infrastructure Program Manager interview questions

I was referred to the position. In less than a week, I received email from a Amazon recruiter. Before my first online conference interview, I received about 3 email from the Amazon recruiter. Everything was very straightforward. I did not have to ask her questions. Then, I had a online conference call for 1 hour. The whole process made me feel comfortable, and I was able to answer the questions based on my best knowledge.