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FastAPI · interview question

Which boundary choice best fits pydantic models in a maintainable Python system?

Multiple choiceEasychapter-13-curatedpremiumfastapipydantic-models
Choose one answer
Answer and explanation

Correct answer

A. Keep the concern close to the data or API boundary that owns it instead of scattering it across unrelated helpers.

Why

Responsibility should follow ownership. When the concern lives near the right boundary, the system is easier to test and explain.

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