The solution is in the intricacy of the code writing process. The reply to this question won't be standard, but it provides you a thought of a candidate's familiarity with the landscape. This sort of question is both helpful to the employer but to the candidate also. To be able to accurately compare candidates, the questions they answer must have the very same degree of difficulty. This open-ended question has the capability to spawn a very good conversation. In addition, you might get some extra problems like limited documentation.