Which of the following is true of a data model?
A) It is created after the database is designed.
B) It is an attribute whose value is associated with only one entity instance.
C) It is a logical representation of the structure of data.
D) It does not describe the relationships among data.

Question

Quizplus · Accepted Answer

A data model is a logical representation of the structure of data, which includes entities, attributes, and relationships among them. It is created before the database is designed as it provides the blueprint for the database. Option B refers to a single-valued attribute, and option D is incorrect as a data model describes the relationships among data.

Which of the Following Is True of a Data Model