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Two Years of Every Click

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
L7

Interview Prompt

Our e-commerce site generates 600 million clickstream events per day through Kafka. Analytics needs this data for user behavior analysis, funnel conversion, and A/B test evaluation, and retention policy requires two years of history. Design the storage and ingestion pipeline.

Summary

Every click, every aisle, every day for two years.

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

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