The Standing Fleet
A easy SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- easy
- Seniority
- L3
Interview Prompt
We're taking inventory of the `compute`, `storage`, and `gpu` tiers of our node fleet. Count how many different hosts run across those tiers, counting a host that appears in more than one tier only once.
Summary
Some hosts wear many hats. Count the machines, not the mentions.
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