Question 550
A nightly ingestion pipeline reports slow commits with high WRITELOG waits while the team recommends rebuilding unrelated nonclustered indexes first. Which observable result BEST proves the database administration requirement is satisfied?
Explanation
Correct Answer
The identified bottleneck has a specific measured cause, and the chosen corrective action changes the relevant metric under representative load. This is the observable database and application outcome rather than merely a saved setting. One wait type alone is not a universal diagnosis; waits, plan behavior, request duration and resource data must be read together.
Incorrect Answers
The captured evidence explains the failing operation at the right time with sufficient context and acceptable overhead, without recording unrestricted sensitive payloads. This would validate Extended Events and workload-specific incident evidence, but it does not establish the required outcome here. Verify instead: The identified bottleneck has a specific measured cause, and the chosen corrective action changes the relevant metric under representative load.
Competing workloads respect their configured limits and critical requests retain service within documented platform and resource constraints. This would validate Resource Governor and scoped compute configuration, but it does not establish the required outcome here. Verify instead: The identified bottleneck has a specific measured cause, and the chosen corrective action changes the relevant metric under representative load.
Operators detect regressions against representative baseline periods and can link database symptoms to trustworthy collected performance evidence. This would validate Database watcher and Azure SQL monitoring baseline, but it does not establish the required outcome here. Verify instead: The identified bottleneck has a specific measured cause, and the chosen corrective action changes the relevant metric under representative load.


