Disabled Flag Ratio
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
- L3
Interview Prompt
An early rollout on January 2, 2022 disabled several feature flags at once. Among flags that were updated on that exact date, what fraction are disabled (enabled = 0)? Return a single decimal value.
Summary
Feature flags that went dark. What percentage fell silent?
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