The Hours They Stayed
A medium Spark mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Spark
- Difficulty
- medium
- Seniority
- junior
Interview Prompt
We run a streaming media platform and the content team wants to know which formats are holding the most audience time. Find the content types with more than 10 unique viewers, reporting the total watch time per type from most to least.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your spark solution with real code execution
- Get instant feedback and a hire/no-hire decision