What is your biggest weakness? is a common job interview question. It can be a tricky question to answer, but with the proper preparation, you will give a winning response. Before you learn how to answer the question, let’s look at the reasons the question is asked during a job interview, so you have a better understanding of what the interviewer wants to know. The question about your weakness is to find out a few of things about you. Are you self aware and know what your strengths and weaknesses are? This is important because people who are know themselves, are usually people who can learn and grow both personally and in the job.