Who's Holding Up Traffic
A medium SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- L4
Interview Prompt
The API product team wants to understand typical daily traffic per endpoint during June 2025. For each endpoint, what was the average number of unique users hitting it on a given day that month?
Summary
Some endpoints carry the product. Others are barely touched.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your sql solution with real code execution
- Get instant feedback and a hire/no-hire decision