The Analysts Cannot Touch Production
A medium Pipeline Design mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.
- Domain
- Pipeline Design
- Difficulty
- medium
- Seniority
- L5
Interview Prompt
Morning reports no longer reconcile for the analytics team, because the same customers and orders sit across several production tables under mismatched keys. Design a pipeline that carries every insert, update and delete from that database (about 2,000 writes a second at peak) into a separate warehouse where records are normalized and combined.
Summary
Production is the source. Analytics needs its own copy.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Draw your pipeline on the design canvas: sources, transforms, storage and checks
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision