Exercise: Data Modeling With The Entity Relationship Model

Questions for: Data Modeling With The Entity Relationship Model

A recursive relationship is a relationship between an archetype and an instance of that archetype.
A:
True
B:
False
C:
D:
Answer: B
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An identifier determines the type of relationship that an entity has.
A:
True
B:
False
C:
D:
Answer: B
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An identifier typically uses more than one attribute.
A:
True
B:
False
C:
D:
Answer: B
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Relationship classes are associations between entity classes.
A:
True
B:
False
C:
D:
Answer: A
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An entity class is a collection of entities and is described by the structure of the entities in that class.
A:
True
B:
False
C:
D:
Answer: A
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