System Design · interview question
What is the clearest sign that code around choosing the model should be refactored?
Multiple choiceHardchapter-15-curatedpremiumsystem-designchoosing-the-model
Answer and explanation
Correct answer
C. When the rule is no longer easy to trace, explain, or change without breaking nearby behavior.
Why
A refactor is justified when the code stops communicating its intent. Choose sync, asyncio, threads, or processes by the dominant bottleneck and the operational cost of complexity.
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