Read Both Ways
A easy Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Python
- Difficulty
- easy
- Seniority
- junior
Interview Prompt
We sweep production records for placeholder identifiers that QA seeds as values reading the same forwards and backwards, so they're easy to spot and purge later. Scan a batch of `tokens` and return the ones that still read the same in both directions.
Summary
Placeholders hide in plain sight. The symmetric ones give themselves away.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your python solution with real code execution
- Get instant feedback and a hire/no-hire decision