Your question is Bottleneck Identification and Resolution. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Explain a time you identified a system bottleneck and the steps you took to resolve it in a cloud environment.
Describe how you separated symptoms from the actual constraint, which telemetry or profiling tools you used, how you validated the root cause, and how you confirmed the fix. Keep the answer focused on your investigation, remediation, and prevention steps. Scope: cloud-hosted systems, observability, performance diagnosis, and capacity or architecture decisions.