Knowledge Check

Composite index evidence

While reviewing database indexes plans, queries filter tenant then order by time. Which action fixes it, and which check proves it worked?

What this task practices

Composite index evidence is a knowledge check interview exercise that trains prompt interpretation, explicit assumptions, a concrete response, and a clear explanation of tradeoffs. The catalog marks it as hard difficulty. It focuses on Database Indexes Plans, Composite Index. The signed-in workspace provides the tools for the round and evaluates the attempt against task-specific criteria. Reference solutions, hidden checks, evaluator instructions, and candidate work remain private.