Twice on the Wire
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
- junior
Interview Prompt
A card reader retransmits its last status ping whenever an ACK is dropped, so the raw stream arrives with the same status repeated back to back. Clean up `pings` so each retransmitted run reads as a single ping.
Summary
A dropped ACK makes the reader say it again. Keep the signal, drop the echo.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write and run your Python against test cases
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision