6. The degree of a relationship refers to the number of entity classes in the relationship.

A. True
B. False


Correct Answer:  A. True

7. Entities use identifiers while tables use keys.

A. True
B. False


Correct Answer:  A. True

8. Composite identifiers consist of two or more attributes.

A. True
B. False


Correct Answer:  A. True

9. When designing a database, first identify the entities, then determine the attributes, and finally establish the relationships.

A. True
B. False


Correct Answer:  B. False

10. A subtype entity is a special case of another entity called a supertype entity.

A. True
B. False


Correct Answer:  A. True

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