Between the Cameras
A easy Data Modeling mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Data Modeling
- Difficulty
- easy
- Seniority
- L4
Interview Prompt
We run a toll road network where a camera reads a vehicle's license plate when it enters a tolled section and again when it leaves, and the same commuter plate turns up several times a day. Operations needs live traffic volume, the average time a vehicle spends crossing a section, and an alert for any plate that entered but never exited. Model each completed crossing as one record. Design the data model.
Summary
Every plate that goes in should come out. Watch the ones that don't.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your data modeling solution with real code execution
- Get instant feedback and a hire/no-hire decision