Amazon Software Development Engineer Intern interview questions

First I had a OA, was relatively easy and don't worry if you don't get perfect because I was fine with getting 27/30 so clearly its not just about the correctness. After that I had my first and only interview. During this interview I got 2 technical questions and 2 behavioral questions. The technical questions were very easy so I am assuming they mainly look at the behavioral questions.

My interviewer was very chill. We started with a standard behavioral question, and he asked a couple of follow-ups. For the technical portion, the first question I got was Valid Parentheses. The second, follow-up question was how I would implement the stack I used in the last question using two queues (reverse of the Leetcode question Implement Queue using Stacks). I did not need to actually write any code for the solutions, the interviewer was satisfied with my verbal responses.