Which of the following options specify how many instances of an entity relate…
2018
Which of the following options specify how many instances of an entity relate to one instance of another entity?
- A.
Redundancy
- B.
Ordinality
- C.
Atomicity
- D.
Cardinality
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Correct answer: D
Cardinality defines the numerical relationship between two entities. It specifies how many instances of an entity can be associated with a single instance of another related entity (such as 1:1, 1:N, or M:N mappings). Therefore, Option D is correct.