The interviewer can trick you by asking this question to understand if you have the quality to lead and know what it takes to become a quality administrator. So, remember to keep the answers to such questions honest and straight. You can quote an instance from the past to support your answer. However, refrain from giving too many details. Your response can be, "I believe that a good business administrator should be an expert with skills like communication, problem-solving, and attention to detail. In my past work experience, I have dealt with various business projects and colleagues and exceptionally exhibited these skills and qualities. Thus, as someone who also has interpersonal skills, I believe I have mastered the best administrative quality".