Companies have several reasons for asking this question, and often, experts suggest you answer with a prior weakness, and the steps you already have taken to convert it to a strength. You may also consider that some companies want to gain insight into areas where additional training may be necessary when you become a part of the team. Being honest with yourself and the interviewer here will ensure that you don't wind up being placed on assignments you're not prepared to handle. The last thing anyone wants is for those weaknesses to be exposed at an inopportune time, wreaking havoc on the company's goals and your career.