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Database - Data Modeling with ER Model

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Exercise : Data Modeling with ER Model - General Questions
1.
Which of the following indicates the maximum number of entities that can be involved in a relationship?
Minimum cardinality
Maximum cardinality
ERD
Greater Entity Count (GEC)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
Which type of entity cannot exist in the database unless another type of entity also exists in the database, but does not require that the identifier of that other entity be included as part of its own identifier?
Weak entity
Strong entity
ID-dependent entity
ID- independent entity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
In a one-to-many relationship, the entity that is on the one side of the relationship is called a(n) ________ entity.
parent
child
instance
subtype
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Which type of entity represents an actual occurrence of an associated generalized entity?
Supertype entity
Subtype entity
Archetype entity
Instance entity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
A recursive relationship is a relationship between an entity and ________ .
itself
a subtype entity
an archetype entity
an instance entity
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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