A Million Cars Phoning Home
A hard 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
- hard
- Seniority
- L6
Interview Prompt
We collect telemetry from millions of connected vehicles, including speed, braking events, OBD sensor readings, and ADAS alerts, and have to serve two teams from the same feed: safety analytics must react to an event the moment it happens, while predictive maintenance can wait minutes for aggregated trends. Vehicle location counts as personal data under European law, so raw coordinates can be retained only for the regulatory window while analytics reads a coarsened location. Design the pipeline that feeds both teams and keeps the location data compliant.
Summary
Every vehicle is a sensor. Deploy the pipeline to catch it all.
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