Exercise: The Database Environment

Questions for: The Database Environment

A database management system (DBMS) is a:
A:
hardware system used to create, maintain, and provide controlled access to a database.
B:
hardware system used to create, maintain, and provide uncontrolled access to a database.
C:
software system used to create, maintain, and provide controlled access to a database.
D:
software system used to create, maintain, and provide uncontrolled access to a database.
Answer: C
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Legacy data is which of the following?
A:
Data contained in a newly-installed system
B:
Data rejected during the installation of a new system
C:
Data contained in a file system
D:
Data contained by a system used prior to the installation of a new system
Answer: D
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Duplicate data often results in loss of data integrity because:
A:
the data formats may be inconsistent.
B:
data values may not agree.
C:
Both A & B.
D:
Neither A & B.
Answer: C
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Metadata enables database designers and users to do all of the following except:
A:
sample data.
B:
understand what data exist.
C:
what the fine distinctions are between similar data items.
D:
what the data mean.
Answer: A
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A data warehouse uses:
A:
partial operational data.
B:
historical operational data.
C:
future operational data.
D:
health care data.
Answer: B
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