Quarterly Peak Cloud Costs
A hard 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
- hard
- Seniority
- L4
Interview Prompt
We're running a quarterly cost review across our cloud spend. Each service racks up many separate charges a month. For each service, show its highest monthly cost in each of the four quarters as four separate columns.
Summary
Every quarter has a peak bill.
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