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UPSC MoD 2022 | SSA | Question: 21

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Which one of the following is not a valid level of the ANSI/SPARC database architecture?

  1. Hyper level
  2. External level
  3. Conceptual level
  4. Storage level

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Ans: A . Hyper Level

3 Levels :

  • External → how individual users or applications see the data.

  • Conceptual → the logical structure of the entire database .

  • Storage → how the data is physically stored on disk .

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