Which statement is false?
A) The DBMS is special software that is programmed to know which data elements each user is authorized to access.
B) User programs send requests for data to the DBMS.
C) During processing, the DBMS periodically makes backup copies of the physical database.
D) The DBMS does not control access to the database.
Correct Answer:
Verified
Q42: Data currency is preserved in a centralized
Q43: Which of the following is not a
Q44: Data concurrency
A)is a security issue in partitioned
Q45: A replicated database is appropriate when
A)there is
Q46: All of the following are elements of
Q48: In the relational database model all of
Q49: In a hierarchical model
A)links between related records
Q50: Which term is not associated with the
Q51: Which statement is correct?
A)In a normalized database,
Q52: The update anomaly in unnormalized databases
A)occurs because
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