Final answer:
It is advisable to keep multiple generations of backups to ensure data safety and availability. Important documents, photos, videos, and other valuable or irreplaceable files should be kept as backups.
Step-by-step explanation:
It is advisable to keep several generations of backups to ensure the safety and availability of important data. This is because backups provide a way to recover data in the event of accidental deletion, hardware failure, or cyber attacks. By having multiple generations of backups, it reduces the risk of data loss and increases the chances of recovering older versions of files.
When it comes to backups, it is important to consider what should be kept. Generally, it is recommended to keep copies of important documents, photos, videos, and any other files that hold value or are difficult to replace. It is also crucial to regularly review and update the backup strategy to include new files or changes.