Amazon Non Software Development Engineer interview questions

Online coding challenge followed by a 4-hr on-site interview. Interview questions ranged from easy to very difficult. The easy part I could have done much better but I started coding right away (because I was asked to) BEFORE I had a plan of how I could solve the problem. As a result, what I wrote on the whiteboard was so messy even I myself got confused. Practicing writing code on paper was not enough, you needed to practice with an audience, and made sure he/she understands what you're trying to do from start to finish. Word of advice, start designing with your interviewer (regardless of how much they push you to start coding), before coding.

At first he asked me the project then some basic knowledge about oo design then ask coding, ask question, talk about the amazon and the interest in amazon no other special things. All the normal process