Use the Amazon tenets (printed on the site) and the S.T.A.R method. That is all they know.
Studding a lot and searching on google for information
Using the Amazon principles and examples from the personal work experience
The focus should be more on Problem solving skills as this is what amazon looks at.
Amazon's interview process is a competency based interview process that uses the STAR technique which is stuck to religiously by the interviewer. All the questions will be linked back to the Amazon Leadership Principles
We should be prepared really good enough for the interview at amaon.com