Architecture · interview question
Which move is the best default when idempotency becomes part of this workflow?
Multiple choiceMediumchapter-18-curatedpremiumarchitectureidempotency
Answer and explanation
Correct answer
B. Design jobs so a duplicate message or retry does not produce duplicate side effects.
Why
Design jobs so a duplicate message or retry does not produce duplicate side effects. That is the stronger engineering move because interviewers frequently use idempotency to test whether you think beyond the happy path. Assuming jobs run exactly once is a common systems mistake that surfaces only under pressure.
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