Relationships of degree two are referred to as binary relationships.
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Q15: E-R modeling recognizes both relationship classes and
Q16: A composite identifier is defined as a
Q17: An identifier of an entity instance must
Q18: In E-R modeling,entities within an entity class
Q19: An entity instance is an occurrence of
Q21: An ID-dependent entity is an entity whose
Q22: In a 1:N relationship,the term parent refers
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Q25: An entity's minimum cardinality in a relationship
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