Highest and Lowest Cloud Costs

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

Which line items in `cloud_costs` sit at the very top and the very bottom of the whole bill? A billing analyst wants each one with its cost ID, amount and service name, plus a `cost_type` reading 'Highest Cost' or 'Lowest Cost'.

Summary

The extremes in cloud spending.

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