Concurrency · interview question

A bug appears around task coordination. What is the strongest first debugging move?

Multiple choiceMediumchapter-15-curatedpremiumconcurrencytask-coordination

python

results = await asyncio.gather(
    fetch_order("ORD-1"),
    fetch_order("ORD-2"),
)

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 task coordination.Trace one concrete example, inspect the state transitions, and compare them to the intended rule before rewriting anything.Keep task coordination implicit so the script stays short and hope the next engineer infers the rule.

Answer and explanation

Correct answer

C. 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. Firing off tasks without thinking about cancellation, ordering, or limits can create confusing failure modes.

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A bug appears around task coordination. What is the strongest first debugging move?

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