MODELING DATA IN THE ORGANIZATION QUIZ

A good identifier is which of the following?

Be intelligent

One that is unique

One that can change over time

Can be null

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A binary relationship cannot be which of the following?

One-to-Many

Zero-to-Zero

One-to-One

Many-to-Many

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When the minimum and maximum number of instances of an entity is one, you know which of the following?

Cannot tell

Mandatory one

Mandatory many

Optional one

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A fact is a word or phrase that has a specific meaning for the business.

False

True

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Some business rules cannot be represented in common data modeling notation.

True

False

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A relationship is which of the following?

Weak entity

A person, place, or thing

Property or characteristic of an entity

Link between entities

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A binary relationship is which of the following?

An entity with two different relationships

A relationship between two attributes

An attribute with two different relationships

A relationship between two entities

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Output reports should be included as part of an ERD.

True

False

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A ternary relationship involves how many entities?

3 or less

More than 3

3 or more

3

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An attribute name should be which of the following?

Singular verb or verb phrase

All of these

Use a alias

Follow a standard format

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