Quiet Failures
A medium SQL mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- mid
Interview Prompt
A payments platform's release team is auditing how reliably each service ships. For each service with at least 15 deployments this year, report its total deployments, how many succeeded, and the resulting success rate, least reliable first.
Summary
Some services land every release; others only look like they do. Find the ones production can't count on.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write and run your SQL against a real database
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision