HTTP Integration · interview question

A bug appears around 429s and backoff. What is the strongest first debugging move?

Multiple choiceHardchapter-12-curatedpremiumhttp-integration429s-and-backoff

python

if response.status_code == 429:
    time.sleep(backoff_seconds)

Keep 429s and backoff implicit so the script stays short and hope the next engineer infers the rule.Delay clarity until production traffic reveals the edge case and then patch it under pressure.Solve the symptom with comments only and avoid changing the code shape around 429s and backoff.Trace one concrete example, inspect the state transitions, and compare them to the intended rule before rewriting anything.

Answer and explanation

Correct answer

D. Trace one concrete example, inspect the state transitions, and compare them to the intended rule before rewriting anything.

Why

That approach is reliable because it creates evidence. Hammering the API harder during a rate limit often turns a temporary constraint into a real outage.

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A bug appears around 429s and backoff. What is the strongest first debugging move?

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