Fresh and Forever
A medium Pipeline Design mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Pipeline Design
- Difficulty
- medium
- Seniority
- mid
Interview Prompt
We run an event platform that ingests roughly 5 billion user-interaction events a day, and two groups depend on it: an operations team that watches live dashboards where a delay past a few seconds is useless, and analysts who run ad-hoc queries across years of history. Design a pipeline that serves both audiences, keeps the live view within seconds, and keeps per-event counts correct when events arrive late or duplicated.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your pipeline design solution with real code execution
- Get instant feedback and a hire/no-hire decision