Mode of Small Team Costs
A hard SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- hard
- Seniority
- L4
Interview Prompt
Among small teams (those with no more than 4 services), find the most common per-service cost amount. Show the single most frequent amount and how many times it appears.
Summary
One charge keeps showing up everywhere.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your sql solution with real code execution
- Get instant feedback and a hire/no-hire decision