Peak API Hour
A medium SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- L4
Interview Prompt
We need to identify the peak traffic hour of the day. First tally API calls per day and hour, then average across days. Which single hour has the highest average call volume? Return the hour and its average call count.
Summary
The hour when traffic peaks.
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