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Exam 1: Database Systems

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Question 41

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Information is produced by processing .

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verified

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Question 42

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Data is said to be verifiable if:

A) the data always yields consistent results.
B) the data cannot be changed or manipulated.
C) the data is obtained from trusted sources.
D) the data is stored in different places within the database.

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verified

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Question 43

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are the result of formatting disorganized data in order to facilitate storage, use and generation of information.

A is a character or group of characters that has a specific meaning.

data exist in a format that does not lend itself to processing that yields information.

End-user data is .

Describe the five types of users identified in a database system.

provide a description of the data characteristics and the set of relationships that link the data found within the database.

A(n) develops when all required changes in the redundant data are not made successfully.

exists when the same data are stored unnecessarily at different places.

relates to activities that make a database operate more efficiently in terms of storage and access speed.

The DBMS reveals much of the database's internal complexity to the application programs and users.

Corporations use only structured data.

is the result of revealing the meaning of raw facts.

databases focus primarily on storing data used to generate information required to make tactical or strategic decisions.

An XML database supports the storage and management of XML data.