Which of the following is NOT a key feature of an effective backup plan?

A key feature of an effective backup plan is the ability to maintain the integrity and accessibility of critical data. This includes identifying which files are essential for backup, such as critical administrative documents, educational resources, and important student information. Protecting student data and vital records is also crucial, as these elements are often subject to regulatory requirements and need to be safeguarded against loss or corruption.

Having a defined schedule for testing backups ensures that the backups can be successfully restored when needed. Regular testing helps confirm that the backup data is intact and usable, which is vital for maintaining operational continuity. Conversely, lacking a schedule for testing backups is a significant oversight, making it the correct answer to identify as not a key feature of an effective backup plan. It weakens the reliability of the backup strategy and increases the risk of data loss when recovery is necessary.

Moreover, considering offsite data storage options strengthens a backup plan by providing redundancy and protection against physical disasters that could affect local data. Therefore, not having a testing schedule stands out as a critical flaw in backup planning, contrasting with the other key features that ensure robust data protection and recovery.