Your question is Monitor a Mission Critical Pipeline. 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 responsible for a pipeline that supports a mission critical service, and you need a clear way to detect failures before they affect downstream users. You want visibility into pipeline health, data correctness, and operational issues across ingestion, processing, and delivery.
How would you design a monitoring and alerting strategy for a mission-critical service?