Database - Data Modeling with ER Model

Exercise : Data Modeling with ER Model - True or False
1.
An ID-dependent entity is an entity whose identifier is a composite identifier where no portion of the composite identifier is an identifier of another entity.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
A ternary relationship is so called because in contains two entities and one association between them.
True
False
Answer: Option
Explanation:
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3.
All instances of an entity class have the same attributes.
True
False
Answer: Option
Explanation:
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4.
A minimum cardinality is the minimum number of entity instances that may participate in a relationship instance.
True
False
Answer: Option
Explanation:
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5.
An attribute describes the entity's characteristics.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.