Welcome to your interview.
The question is on your right: Handle Incomplete Pipeline Data. Take a moment with it first.
Talk your thinking through with me if you like - when you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes). Discussion and graded submissions share your five interviewer interactions, so spend them well.
You're working on a data pipeline where source data can arrive with missing fields, duplicate records, or conflicting values across systems. You want a practical approach for keeping downstream reporting usable while preserving traceability back to the raw inputs.
How would you handle a dataset that is incomplete or inconsistent?