Peak Hour Power Callers
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
- L3
Interview Prompt
Support is tracking who leans hardest on the API during the afternoon, from 3 to 6 PM. Find the users who placed at least 3 calls in that window along with their call counts, busiest first.
Summary
One hour. The phone lines exploded.
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