Question 750
After the team applies this response: Split major work into measurable jobs or steps and track duration distributions across comparable revisions. In the situation—A team cannot tell which stage introduced a 20-minute regression because one job combines restore, compile, test and package commands. Which evidence BEST demonstrates the response is effective?
Explanation
Correct Answer
The governing engineering principle is: Pipeline instrumentation should isolate the critical path so optimization targets measurable causes.
Incorrect Answers
Test reporting should expose actionable results tied to each run, not just hidden raw files. The needed step here is to compare per-stage timing before and after a controlled change and identify the real bottleneck.
Desired-state management requires observing actual state and controlling deviations from reviewed definitions. The appropriate remedy is to compare per-stage timing before and after a controlled change and identify the real bottleneck.
Reproducible testing requires the execution toolchain to be specified rather than assumed. Instead, the response must compare per-stage timing before and after a controlled change and identify the real bottleneck.






Designing and Implementing Microsoft DevOps Solutions (AZ-400) Practice Tests