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The Chunked Reader

A medium Python mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.

Domain
Python
Difficulty
medium
Seniority
junior, mid

Interview Prompt

Our ingestion pipeline processes files larger than available memory. Write a generator function called chunked_read that takes a list (simulating file lines) and a chunk size, and yields one chunk at a time. Each chunk is a list of up to chunk_size elements. The last chunk may be smaller.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write your python solution with real code execution
  4. Get instant feedback and a hire/no-hire decision