The Well-Defended Borders
A easy SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- easy
- Seniority
- L3
Interview Prompt
The infrastructure team is enforcing a minimum cluster size policy: regions with too few running nodes need additional provisioning. Show each region that already meets the minimum, along with its count of running nodes.
Summary
Some frontiers already stand ready. Find the ones that do.
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