The interviewer wants to know the area you are weak or more challenged in regarding accounts management. You can be candid in your answer, recognizing that you aren't great at something and acknowledging your need to improve. However, pick weaknesses that are not core skills for this position. Be sure to share how you are currently improving on this weakness.

Perhaps you are watching TED talks to gain skills in a particular area, reading books and articles on the subject, or maybe you are taking a workshop at a nearby community center. Identify your weakness and the action taken for improvement. We are all human with our weaknesses, so don't be afraid to share yours!

"I believe I could improve on some technical skills including Excel and PowerPoint. Currently, I am at a beginner to intermediate level; however, I would be more comfortable at an advanced level to help me develop reports better. I have enrolled myself in an evening/weekend workshop for the next six weeks. I'm looking forward to seeing how stellar my skills are after that course and how I will be able to apply my skills on the job!"