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What is a data warehouse?

  1. A A central repository of integrated, historical data structured for analysis
  2. B A backup of the transactional database
  3. C A file server for documents
  4. D A real-time transaction processor
Answer

A central repository of integrated, historical data structured for analysis

Bill Inmon defined it as subject-oriented, integrated, time-variant and non-volatile, which distinguishes it from an operational system.

All Data Warehousing MCQs

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