Database - Data Modeling with ER Model

Exercise : Data Modeling with ER Model - True or False
16.
An entity class is a collection of entities and is described by the structure of the entities in that class.
True
False
Answer: Option
Explanation:
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17.
Relationship classes are associations between entity classes.
True
False
Answer: Option
Explanation:
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18.
An identifier typically uses more than one attribute.
True
False
Answer: Option
Explanation:
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19.
An identifier determines the type of relationship that an entity has.
True
False
Answer: Option
Explanation:
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20.
A recursive relationship is a relationship between an archetype and an instance of that archetype.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.