Blast Radius
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
- L4
Interview Prompt
After a run of rollbacks, leadership wants to know how much deployment capacity each service is bleeding to failures. For every service, report the share of its deployments that failed, and the share of its deploy time those failures consumed.
Summary
When deploys fail, how bad is the blast radius?
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