Final answer:
The essential qualification for an administrative professional is high school completion and continuing education. A legal or medical secretary needs knowledge of applicable terminology and an understanding of procedures in that field.
Step-by-step explanation:
The qualification that is essential for an administrative professional to continue to succeed is the equivalent of high school completion (diploma, HiSet, GED, etc.) and continuing education. While a high school diploma is important, in today's competitive job market, it is crucial to have further education and training to keep up with the changing demands of the industry.
For a legal or medical secretary, knowledge of the applicable terminology is important, but they also need an understanding of procedures in that field. Additionally, having a professional credential in the form of a certification or degree can further enhance their qualifications and increase their chances of success.
Learn more about Qualifications for administrative professionals and legal/medical secretaries