By asking what specific achievements you're most proud of, your admissions interviewers will better understand your motivators and how far above and beyond you go in your work. It will clue them to the level of your experience level, how this achievement acts as a milestone towards your goals, and why you regard it as a success in your personal development. It is okay to boast a little when answering this question. Be proud yet humble and not arrogant, and share where you hope this achievement will lead you on your path.
