What does it mean when an entity has a minimum cardinality of one?
A) The entity is required in the relationship.
B) The entity is not required in the relationship.
C) The entity should not be in the relationship as an attribute.
D) The entity must be listed with all ones in the data fields.

Question

Quizplus · Accepted Answer

When an entity has a minimum cardinality of one, it means that the entity is required in the relationship. This indicates that every instance of the entity must participate in the relationship. In other words, the entity must have at least one occurrence in the relationship. Therefore, option A is the best choice.

What Does It Mean When an Entity Has a Minimum