The Hours They Stayed
A medium Spark mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.
- Domain
- Spark
- Difficulty
- medium
- Seniority
- junior
Interview Prompt
Each play of a catalog item is logged with who watched and how many seconds they watched, and every item has a format. Find the content types with more than 28 unique viewers, reporting each type's total watch time and how many unique viewers it drew.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write and run your Spark code against the tables
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision