Question 70
An administrator plans to switch old partitions out nightly but builds a nonaligned index that blocks efficient partition switching. Which observable result BEST proves the database administration requirement is satisfied?
Explanation
Correct Answer
Queries and retention maintenance operate on intended partitions with predictable execution plans, storage growth and acceptable CPU overhead. This is the observable database and application outcome rather than merely a saved setting. Partitioning alone does not make every query faster; indexes and predicate alignment determine pruning and compression may trade CPU for IO.
Incorrect Answers
The migration plan explicitly maps each source feature to a supported destination behavior and documented remediation before cutover. This would validate Azure SQL migration assessment and feature compatibility, but it does not establish the required outcome here. Verify instead: Queries and retention maintenance operate on intended partitions with predictable execution plans, storage growth and acceptable CPU overhead.
The migrated service opens with consistent data, working identities and restored application workflows within the agreed maintenance period. This would validate Offline migration and post-migration verification, but it does not establish the required outcome here. Verify instead: Queries and retention maintenance operate on intended partitions with predictable execution plans, storage growth and acceptable CPU overhead.
The chosen tier or pool absorbs expected peaks with measured response times while avoiding waste from persistently idle dedicated allocations. This would validate Azure SQL Database service tiers and elastic pools, but it does not establish the required outcome here. Verify instead: Queries and retention maintenance operate on intended partitions with predictable execution plans, storage growth and acceptable CPU overhead.


