Question

ideally, how often should you back up the data on your computer? once an hour once a day once a month once a year

Explanation:

The frequency of data - backup depends on how often the data changes and its importance. For most users, daily changes in data are common, and losing a day's worth of work is more acceptable than losing more. Once an hour is often over - kill for general users, and once a month or once a year may result in significant data loss if something goes wrong.

Answer:

B. once a day