The Warm Edges

A medium 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
medium
Seniority
L4

Interview Prompt

The CDN team is comparing API traffic at the edge locations that are actually caching it. Find the total bytes served at each edge location and path combination, smallest first.

Summary

Some edges keep the cache warm. Measure what they carry.

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