The number of entity classes involved in a relationship is the cardinality of the relationship.
Correct Answer:
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Q9: Which of the following is true about
Q10: When an entity class has a relationship
Q11: There is usually only one instance of
Q12: Unified Modeling Language (UML)has quickly replaced the
Q13: In the Entity-Relationship data model,all instances of
Q13: An entity class is described by the
Q15: One or more entities can be associated
Q16: It is possible for an entity to
Q17: Which of the following is not a
Q19: A PRODUCT entity instance is the collection
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