This is an example of an operational question that has technical aspects to it. The interviewer is interested in learning more about how you go about doing your job related to this specific topic. Since one of the key requirements for a software engineering job at Amazon is "Knowledge of professional software engineering practices & best practices for the full software development life cycle, including coding standards, code reviews, source control management, build processes, testing, and operations" you will be asked questions related to this during the interview. No two interviewers are the same, so the questions you will be asked may vary from interview to interview. The best way to prepare for this is to research Amazon's software development practices, review your resume, and spend some time reviewing the operations you perform and the technologies with which you work.