Which is not a basic construct of an E-R model?a.Identifiersb.Entity typesc.Relationshipsd.Attributes
Question
Which is not a basic construct of an E-R model?a.Identifiersb.Entity typesc.Relationshipsd.Attributes
Solution
The answer is a. Identifiers. In an E-R (Entity-Relationship) model, the basic constructs are Entity types, Relationships, and Attributes. Identifiers are not considered a basic construct of an E-R model. They are used to uniquely identify entities in a database, but they are not a fundamental part of the E-R model itself.
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