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What does non-volatile mean in the context of a data warehouse?

  1. A Data is loaded and retained rather than continuously updated or deleted
  2. B Data is stored in memory
  3. C Data cannot be queried
  4. D Data is encrypted
Answer

Data is loaded and retained rather than continuously updated or deleted

Warehouses accumulate history, which is what allows trend analysis that an operational system holding only current state cannot support.

All Data Warehousing MCQs

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