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Introduction to Database System

Introduction to Database System
All instances of an entity class have the same attributes.

False
True

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Introduction to Database System
A relation in this form is free of all modification anomalies.

Third normal form
First normal form
Second normal form
Domain/key normal form

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Introduction to Database System
Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity?

ID-dependent entity
ID-independent entity
Weak entity
Strong entity

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Introduction to Database System
Keys made up of two or more attributes are called composite keys.

False
True

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Introduction to Database System
A maximum cardinality is the maximum number of entity instances that can participate in a relationship instance.

False
True

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Introduction to Database System
Entity instances are associated by relationship classes.

False
True

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