Top Regions by Effective Uptime
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 SRE dashboard tracks effective uptime by region. Effective uptime hours equals uptime minus (latency / 10); treat negative results as zero. Round to 2 decimal places. Return the top 3 regions by total effective uptime hours, where tied regions share the same rank. Show region and total effective hours.
Summary
The most reliable regions.
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