Personal Best
An easy Data Modeling 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
- Data Modeling
- Difficulty
- easy
- Seniority
- L4
Interview Prompt
We're building a fitness app where users log workouts. Each workout has exercises with sets and reps. We need to track progress over time, like 'how much can this user bench press now vs. 3 months ago?' Design the data model.
Summary
Reps, sets, streaks, and personal bests. Gym rats love their stats.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Draw your data model on the schema canvas: tables, keys and relationships
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision