Your question is Pipeline Alerting and Monitoring Design. 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).
You're operating a data pipeline and need confidence that failures, delays, and data issues will be caught quickly. You want a monitoring setup that gives useful alerts without creating noise for the on-call engineer.
How do you ensure monitoring systems are correctly configured to trigger timely alerts for critical events?