A company backs up their data using daily, weekly, and monthly tape backups. The weekly backups are also known as which of the following?

"Son" backups refer to the most recent, typically daily, backups within the GFS rotation strategy.

The Grandfather-Father-Son (GFS) backup rotation strategy is a hierarchical method for managing backup media over time. In this scheme, daily backups are typically called "Sons," weekly backups are designated as "Fathers," and monthly (or less frequent) backups are known as "Grandfathers," providing multiple recovery points with varying retention periods.

"Grandfather" backups represent the oldest and least frequent backups, such as monthly or yearly, in the GFS scheme.

"Great-grandfather" is not a standard term used within the widely recognized Grandfather-Father-Son backup rotation strategy.