Question 2

Explanation

The correct answer: Periodically restoring and comparing data from backups to the original data is the most effective method for verifying the integrity of data backups. This process, often referred to as a "restore rehearsal," allows you to confirm that the data can be recovered in its entirety and is identical to the original data. It not only checks that the backup was created successfully, but also that it can be successfully restored, which is the ultimate purpose of the backup. The incorrect answers: Running diagnostic tests on the backup system to ensure it is functioning properly: While running diagnostic tests on the backup system can provide information about the functionality of the system itself, it doesn't necessarily validate the integrity of the data within the backups. The backup system could function properly, but issues such as data corruption could still occur during the backup process. Checking the logs of the backup system to ensure there are no errors or issues: Checking the logs of the backup system is an important part of monitoring the backup process, but it doesn't directly verify the integrity of the backup data. Error-free logs can indicate that the backup process is working as expected, but they cannot guarantee the successful restoration of the backed-up data. Asking employees to report any issues they have had with data loss or corruption: While it's important to address employee-reported issues, this approach is reactive, not proactive, and relies on the assumption that employees will notice and report issues. Also, it does not directly validate the integrity of the backups, as employees might not interact with the backed-up data until they need to restore it, which could be too late. Regularly restoring and comparing backup data is a more direct and proactive approach.