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Why is idempotency important in a data pipeline?

  1. A Re-running a failed load must not duplicate or corrupt data
  2. B It speeds up processing
  3. C It reduces storage
  4. D It is required for encryption
Answer

Re-running a failed load must not duplicate or corrupt data

Pipelines fail and are retried routinely, so a load that produces different results on a second run is a source of silent corruption.

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