The Sales Architecture
A medium 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
- medium
- Seniority
- L4
Interview Prompt
We sell physical products through an online marketplace, and our normalized transactional database is too slow to power the BI dashboards analysts depend on. They need to break down revenue by product, seller, customer, geography, and time. Design a schema that makes those slices fast to query at scale.
Summary
Numbers are easy. Making them queryable at scale is the real job.
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