Data Modeling with ER Model MCQs
Practice free Data Modeling with ER Model multiple-choice questions with instant answer feedback and step-by-step solutions. Click an option to check yourself, reveal the full explanation, and work through all 41 questions — no login required.
Question 19medium
Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity?
Question 20hard
In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.
Question 21hard
An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity.
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Question 22hard
A ternary relationship is so called because in contains two entities and one association between them.
Question 24hard
A minimum cardinality is the minimum number of entity instances that may participate in a relationship instance.
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Question 26hard
The degree of a relationship refers to the number of entity classes in the relationship.