Data modeling with er model Practice Questions & Answers

A recursive relationship is a relationship between an archetype and an instance of that archetype.

A recursive relationship is a relationship between an archetype and an instance of that archetype.

A).  True

B).  False

An identifier determines the type of relationship that an entity has.

An identifier determines the type of relationship that an entity has.

A).  True

B).  False

An identifier typically uses more than one attribute.

An identifier typically uses more than one attribute.

A).  True

B).  False

Relationship classes are associations between entity classes.

Relationship classes are associations between entity classes.

A).  True

B).  False

An entity class is a collection of entities and is described by the structure of the entities in that class.

An entity class is a collection of entities and is described by the structure of the entities in that class.

A).  True

B).  False

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