Gone to Ground

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

Our mobile A/B tests keep a control group that runs on Android, and we're checking which of those users have gone quiet. For each one whose account is no longer active, list the user with their age bracket, platform and variant.

Summary

The control group held steady. Some of them slipped away. Find the ones who stopped answering.

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