Your question is Production Monitoring Basics. 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 monitor a system in production?
Explain how you would monitor an ETL or streaming pipeline end to end. Cover infrastructure health, application and pipeline metrics, logs, traces, data freshness, data quality, alerting, dashboards, escalation, and incident response. Distinguish symptoms from root-cause signals and describe how you would avoid alert fatigue.