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In an enterprise-class database system, business users interact directly with database applications, which directly access the database data.

  • A.True
  • B.
    False
  • C.None of the Above.
  • D.All of the Above.

Answer: B

Correct answer: False

There is one more layer. Users interact with applications, applications call the DBMS, and only the DBMS touches the data. Applications never read or write the database files themselves - if they did, there would be no way to enforce security, integrity or concurrency.

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