1 / 5
An orchestrator models the pipeline as a 'DAG'. What does DAG stand for?
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A DAG (Directed Acyclic Graph) defines task order via dependencies without any loops.
2 / 5
A task is 'downstream' of another. What does that mean?
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Downstream tasks wait for their upstream dependencies to finish before they run.
3 / 5
The team runs a 'backfill'. What is it?
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A backfill processes historical periods, e.g. after fixing a bug or adding a new table.
4 / 5
A task has a 'retry policy' of 3 attempts. What does that achieve?
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Retries handle transient errors (e.g. a brief network blip) without manual intervention.
5 / 5
Which sentence correctly uses 'idempotent' for a pipeline task?
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An idempotent task produces the same result if re-run, which is essential for safe retries and backfills.