Question 630
At Keystone BioLabs, the regulated data engineering team maintains a clinical trial and laboratory audit database system with requirements for record confidentiality and strong audit history. The acceptance review requires independent evidence for: An application backup job succeeds but log growth continues because the SQL Server database is in full recovery and log backups were never scheduled. Which observed result BEST proves the intended problem is corrected?
Explanation
Correct Answer
A controlled workload has a continuous log backup chain and log reuse behavior matches the diagnosed recovery requirements. That observable result supports resolution of: An application backup job succeeds but log growth continues because the SQL Server database is in full recovery and log backups were never scheduled. The corresponding corrective change is: Define a suitable log backup cadence and verify truncation eligibility, recovery model and log reuse waiting conditions. The Keystone BioLabs reviewer can distinguish demonstrated database behavior from an untested change claim.
Incorrect Answers
A native BACKUP TO URL operation writes a usable backup and a subsequent test RESTORE FROM URL passes validation. That result is evidence for another corrective change: Configure supported secure backup-to-URL authentication and monitor storage access and backup job completion. The alternative problem is: A SQL Server backup is placed into Azure Blob Storage but its credential design uses an expired SAS token and backup jobs silently fail. The current Keystone BioLabs issue is instead: An application backup job succeeds but log growth continues because the SQL Server database is in full recovery and log backups were never scheduled. Its decisive acceptance evidence would be: A controlled workload has a continuous log backup chain and log reuse behavior matches the diagnosed recovery requirements.
A recovery drill successfully restores from a retained earlier copy even when a deliberately damaged latest backup is rejected. That result is evidence for another corrective change: Keep independent protected backup copies with retention and routinely verify backups through actual restore tests. The alternative problem is: A team overwrites the only usable full database backup with an unverified new file and discovers it is corrupt during an outage. The current Keystone BioLabs issue is instead: An application backup job succeeds but log growth continues because the SQL Server database is in full recovery and log backups were never scheduled. Its decisive acceptance evidence would be: A controlled workload has a continuous log backup chain and log reuse behavior matches the diagnosed recovery requirements.
An unauthorized storage reader cannot retrieve or decrypt the test backup while the approved restore identity successfully recovers it. That result is evidence for another corrective change: Encrypt supported backups and restrict storage access with appropriate key management and retention controls. The alternative problem is: A critical SQL Server backup contains confidential financial data but is copied to an unencrypted shared container accessible to many employees. The current Keystone BioLabs issue is instead: An application backup job succeeds but log growth continues because the SQL Server database is in full recovery and log backups were never scheduled. Its decisive acceptance evidence would be: A controlled workload has a continuous log backup chain and log reuse behavior matches the diagnosed recovery requirements.