Amazon Solutions Architect Mock Interview
Master 30 Amazon Solutions Architect interview questions covering AWS services, system design, and the Leadership Principles.
Question 21 of 30
How are DRY and DIE principles used in software engineering?
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William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
By asking this question, the interviewer assumes that you know the acronyms DRY (Don't Repeat Yourself) and DIE (Duplication is Evil) and how they are used in software engineering. If you know the acronyms, answer the question using them since the interviewer at Amazon has indicated that they know what they mean. If you are not familiar with the acronyms, state this to the interviewer and ask them to clarify the question. You always why make sure that you are answering the question which the interviewer is asking.
William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.
"Both of these acronyms address replication within a software application. DRY stands for Don't Repeat Yourself and DIE, which means Duplication is Evil, encourages programmers not to develop software that contains duplication or repetitive features within the application. This doesn't mean that Amazon developers can't repurpose code they've already written. Most contemporary programming languages have libraries of code created by developers that can be repurposed in other applications. The benefit of this is that it reduces development cycles, standardizes applications within a given operating system or platform, and provides developers with code which has or even verified and tested."
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