The Database Environment – General Questions

1. A data warehouse uses:

A. partial operational data.
B. historical operational data.
C. future operational data.
D. health care data.

Correct Answer:  B. historical operational 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.

Correct Answer:  A. sample data.

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.

Correct Answer:  C. Both 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

Correct Answer:  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.

Correct Answer:  C. software system used to create, maintain, and provide controlled access to a database.

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