Which of the Following Correctly Describes the Referential Integrity Rule

question 6

Multiple Choice

Which of the following correctly describes the Referential Integrity Rule?

• A)The primary key of a table must have data values (cannot be null).
• B)Each attribute in a table must have a unique name.
• C)The data value for a foreign key could be null.
• D)Values of a specific attribute must be of the same type.

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Definitions:

Direct Labor-hours

The full amount of labor hours by employees directly contributing to the generation of products or services.

Variable Overhead Rate Variance

The difference between the actual variable overhead incurred and the expected (or standard) variable overhead based on a standard rate.

Variable Manufacturing Overhead

Costs that vary with the level of production output, such as utilities or raw materials.

Direct Labor-hours

The total time workers spend working directly on manufacturing goods, often used as a basis for allocating manufacturing overhead.