Introduction to Database System A maximum cardinality is the maximum number of entity instances that can participate in a relationship instance. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System An attribute that names or identifies entity instances is a(n): relationship. attribute. identifier. entity. relationship. attribute. identifier. entity. ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is NOT a basic element of all versions of the E-R model? Relationships Primary keys Attributes Entities Relationships Primary keys Attributes Entities ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System 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. False True False True ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which type of entity is related to two or more associated entities that each contain specialized attributes that apply to some but not all of the instances of the entity? Supertype entity Subtype entity Archetype entity Instance entity Supertype entity Subtype entity Archetype entity Instance entity ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following refers to something that can be identified in the user's work environment, something that the users want to track? Attribute Entity Identifier Relationship Attribute Entity Identifier Relationship ANSWER DOWNLOAD EXAMIANS APP
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