____ means that an entity has a minimum cardinality of zero.
A) The entity has a mandatory role 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 zeroes in the data fields.

Question

____ means that an entity has a minimum cardinality of zero.​
A) ​The entity has a mandatory role 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 zeroes in the data fields.

Quizplus · Accepted Answer

Minimum cardinality of zero means that the entity is not required in the relationship. It may or may not exist in the relationship. Option A is incorrect as it implies that the entity is mandatory in the relationship. Option C is incorrect as it does not provide any information about the cardinality. Option D is also incorrect as it does not make sense in the context of cardinality.

____ Means That an Entity Has a Minimum Cardinality of Zero.​

____ Means That an Entity Has a Minimum Cardinality of Zero.