In order to save and protect as much valuable data as possible, many companies will back-up their data anywhere from every 24 hours to once per week. The frequency of back-ups might depend on the size and profile of the company and the nature of the stored information, though it is uncommon to see a company back-up any less frequently than once per week. Consider the company you're interested in - a large company like Amazon or Microsoft might back-up every 24 hours, while a smaller start-up company or nonprofit might back-up once or twice a week. When answering this question, safely share a range of the maximum and minimum times you'd back-up a database in a given period of time.