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ER Model and Business Rules

1.

A rectangle represents which of the following in an EER?

Answer: C

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2.

An oval represents which of the following in an EER?

Answer: A

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3.

An ERD that has had the entities clustered will display more entities.

Answer: B

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4.

Action assertions have traditionally been implemented within an application program

Answer: A

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5.

An entity cluster is a set of one or more entity types and associated relationships.

Answer: A

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Answer: B

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7.

It is appropriate to use a supertype/subtype relationship when there are attributes that apply to some of the instances of an entity type.

Answer: A

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8.

Which of the following is not one of the three ways to classify an action assertion?

Answer: D

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9.

When an entity instance may be a member of multiple subtypes or it does not have to be a member of a subtype, it is which of the following?

Answer: C

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10.

If an entity adheres to the disjoint rule, then an entity instance can be a member of more than one entity for a given supertype.

Answer: B

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