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1. A data warehouse uses:
A. partial operational data.
B. historical operational data.
C. future operational data.
D. health care data.
2. 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.
3. 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.
4. 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
5. 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.
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