Every Device, Every Impression

A hard Pipeline Design 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
Pipeline Design
Difficulty
hard
Seniority
L6

Interview Prompt

How would you design a pipeline a revenue analyst can trust for two numbers fed by the same playback telemetry from millions of devices: ad billing, settled with partners every day, and content analytics, which tolerates late, approximate counts?

Summary

Every ad seen. Every second watched. Real-time.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Draw your pipeline on the design canvas: sources, transforms, storage and checks
  4. Answer the interviewer's follow-up questions, then get a hire or no-hire decision