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Streaming and Batch Unified Pipeline on Azure Databricks

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 digital marketing platform generates a continuous stream of ad impression and conversion events that need to feed both a real-time campaign performance dashboard and a daily attribution model. We have been running separate streaming and batch pipelines that have drifted out of sync, causing discrepancies between the live dashboard and the daily report. Design a unified architecture on Azure Databricks that eliminates the discrepancy.

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