The Quiet Outlier
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
An SRE is chasing a latency outlier but wants to set aside the readings that show up constantly across normal traffic. Among the latency values that appear no more than twice in all API calls, surface the largest one.
Summary
Ignore what the traffic does all day. Find the spike that barely showed up.
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