Executive Secretary Question:

If your current or past experience conforms to the position, you should briefly describe your background and the related responsibilities.

In fact, the interviewer wants you to tell about yourself – your greatest achievements as a manager assistant and how efficiently you performed the various tasks required for the position.
You should demonstrate that you are detail oriented and confident in providing higher quality benefits to your superiors.

You can describe the working relationship with your chief executive, including workload management, organizing reference material for bids/proposals, outlining new business opportunities, and tracking progress on all up-to-date projects.