Services With Most Error Occurrences

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
L3

Interview Prompt

The reliability team is auditing the first half of the year's error logs, where each row records how many times a given error fired. For each service, surface its single highest occurrence count, biggest spike first.

Summary

The noisiest services.

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