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In which of the following is a single-entity instance of one type of related to a single-entity instance of another type?

One-to-One Relationship
One-to-Many Relationship
Many-to-Many Relationship
Composite Relationship

Correct Answer: One-to-One Relationship

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More Questions from Data Modeling with ER Model

Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity?
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.
When designing a database, first identify the entities, then determine the attributes, and finally establish the relationships.
A ternary relationship is so called because in contains two entities and one association between them.
In a 1:N relationship, the parent is the entity on the one side of the relationship and the child is the entity on the N side of the relationship.
An entity is something that can be identified in the user's work environment; something that the users want to track.
An identifier typically uses more than one attribute.
Relationship classes are associations between entity classes.
Entity instances are associated by relationship classes.
Composite identifiers consist of two or more attributes.

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