Loading interview...

Cost-Efficient Clickstream Analytics with Two-Year Retention

A hard Pipeline Design mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.

Domain
Pipeline Design
Difficulty
hard
Seniority
staff

Interview Prompt

Our platform generates 600 million user interaction events per day through Kafka and we need a cost-efficient architecture to store and query this data for analytics with a two-year retention requirement. Query latency and storage cost are both first-class constraints. Design the end-to-end ingestion, storage, and query architecture.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write your pipeline design solution with real code execution
  4. Get instant feedback and a hire/no-hire decision