Asking that kind of minutia detailed question in an interview is seriously bad practice. It is easy to come up with questions that the author would fail in an

Asking that kind of minutia detailed question in an interview is seriously bad practice. It is easy to come up with questions that the author would fail in an interview. Simply because there are thousands of minutia details that most senior developers wouldn't know about. What the interviewer should focus on is the ability to solve real world problems. For example by walking the interviewee through a real world business scenario and letting the interviewee describe how he/she would solve the problem.