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What is a staging area used for in a warehouse pipeline?

  1. A Holding raw extracted data before transformation and loading
  2. B Serving reports to users
  3. C Storing archived history
  4. D Running the transactional application
Answer

Holding raw extracted data before transformation and loading

Staging isolates extraction from transformation, so a source outage does not corrupt the warehouse and reloads are possible.

All Data Warehousing MCQs

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