Cheapest CDN Route

An easy SQL 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
SQL
Difficulty
easy
Seniority
L5

Interview Prompt

Our SFO edge cache keeps evicting objects, and we suspect it was sized below the heaviest payload it actually delivers. Find the largest payload in bytes among the successful responses that edge served, as a single value.

Summary

The cheapest path across regions.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write and run your SQL against a real database
  4. Answer the interviewer's follow-up questions, then get a hire or no-hire decision