The Password Builder

An easy Python 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
Python
Difficulty
easy
Seniority
L3

Interview Prompt

A test fixture needs predictable placeholder passwords: given a `length` and a character `pool`, build a password of exactly `length` characters. It uses `pool`'s characters in order and repeats them from the start as many times as needed.

Summary

Random characters, fixed rules.

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 Python against test cases
  4. Answer the interviewer's follow-up questions, then get a hire or no-hire decision