Question 520
A KQL query on an external Delta shortcut is slow, but no local copy should be created manually. Which postchange result provides the strongest validation of success?
Explanation
Correct Answer
Both no-copy reference and cache behavior meet the constraints. This observation directly tests the expected outcome.
Incorrect Answers
Controlled duplicate injection validates deduplication.
Replay invariance validates restart safety.
Supported item type and output validate the architecture.