Unmatched Deploy Services

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
L3

Interview Prompt

We expect every service in `deploy_logs` to have reported at least once to the error tracker in `err_tracks`, and any that never has is probably shipping without error reporting wired up. Give me an alphabetical roster of those services.

Summary

Two registries. They do not agree.

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