

Welcome to your interview for the Data Engineer role at Booz Allen Hamilton.
The question is on your right: Common Data Pipeline Design Pitfalls. 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. You have three graded attempts to score 7/10 or better.
You're reviewing a new data pipeline design and want to catch common mistakes before they show up in production. The goal is to think through the failure points that make pipelines hard to trust, operate, or scale.
What are some common pitfalls in data pipeline design?