Final answer:
A hospital's plan to periodically backup archived files is known as a Disaster Recovery Plan.
Step-by-step explanation:
The hospital's plan to periodically backup archived files is known as a Disaster Recovery Plan. A Disaster Recovery Plan is a set of policies, procedures, and tools designed to enable the recovery or continuation of vital technology infrastructure and systems following a natural or human-induced disaster. It ensures that critical data and files are backed up regularly and can be restored in the event of a disaster. For example, a hospital might back up patient records and other important files on a regular basis to an offsite location or cloud storage to protect against data loss.