MODELING DATA IN THE ORGANIZATION QUIZ

A logical representation of the data for an organization or for a business area is known as an entity-relationship model.

False

True

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Relationships cannot have attributes.

True

False

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An attribute is a person, place, object, event in a user environment.

True

False

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A relationship is an association representing the interaction between attributes.

True

False

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A binary relationship is a relationship between two or more entities.

False

True

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A relationship is which of the following?

A person, place, or thing

Link between entities

Property or characteristic of an entity

Weak entity

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Which of the following conditions should exist if you want to convert a relationship to an associative entity?

Some of the relationships for the participating entities are 'many'.

All of these

The resulting associative entity has no attributes.

The resulting associative entity has an independent meaning.

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A binary relationship cannot be which of the following?

One-to-Many

One-to-One

Many-to-Many

Zero-to-Zero

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A good business rule is which of the following?

Redundant

Imprecise

Compound

Declarative

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An entity name should be which of the following?

All of these

Concise

A singular noun

Specific to the organization

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