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The data models defined by ANSI/SPARC architecture are

  • A.Conceptual, physical and internal
  • B.Conceptual, view and external
  • C.Logical, physical and internal
  • D.Logical, physical and view

Answer: D

Correct answer: Logical, physical and view

The ANSI/SPARC three-schema architecture has an internal or physical schema, a conceptual or logical schema, and external or view schemas - one per user group. Separating them is what makes data independence possible.

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