Quiz: Metrics Monitoring
Five scenario questions with explanations and a visual checkpoint.
Visual checkpoint
Use this diagram to locate the state and failure boundaries tested by the questions. Answer all five questions before revealing feedback; the result is a study checkpoint rather than a certification.
Figure — Instrumented services → Collectors (samples); Collectors → Series ingestion (bounded buffer); Series ingestion → Time-series storage (series + time); Time-series storage → Query / alert engine (window queries); Query / alert engine → Notification state (pending / firing); Series ingestion → Query / alert engine (freshness signal)
Review your reasoning
After checking answers, identify the incorrect assumption behind each missed question. Rewrite it as a rule with a concrete exception or failure case, then return to the lesson.
Why is averaging the p99 latency from ten instances not the service-wide p99?
Why is averaging the p99 latency from ten instances not the service-wide p99?
Your design draft
Clarify assumptions, explain your approach, and test the difficult cases. Save your draft, then compare it with the study notes.
Self-review checklist
Self-guided practice. Automated AI feedback and code execution are not connected.