Your question is Root Cause Analysis for Latency Spikes. 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).
How do you approach root cause analysis for recurring latency spikes in a high-throughput financial system? Explain how you would organize the investigation, coordinate engineering and operations stakeholders, distinguish symptoms from root causes, and manage production risk while testing hypotheses. Describe the deliverables, escalation criteria, mitigation plan, and controls you would use to prevent recurrence.