Bottom 2% Services by Spend

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

FinOps is hunting zombie services that cost almost nothing but still rack up billing line items. From the May 2026 cloud costs, surface the cheapest quarter of services by total spend, each with its total, cheapest first.

Summary

The bottom 2% of spenders. Who are they?

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write and run your SQL against a real database
  4. Answer the interviewer's follow-up questions, then get a hire or no-hire decision