Where the Signal Drops
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
On-call has been tracking API reliability and wants to know which endpoints are failing most often. For each endpoint, report its share of error responses, worst first.
Summary
Every endpoint answers. Some just answer wrong. Find the ones dropping the most.
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