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Database Questions and Answers - RejinpaulPlacement

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1.
In which of the following is a single-entity instance of one type of related to a single-entity instance of another type?
Answer & Solution
Answer: (A) One-to-One Relationship
Solution:
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2.
Entities can be associated with one another in which of the following?
Answer & Solution
Answer: (D) Relationships
Solution:
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3.
Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator?
Answer & Solution
Answer: (B) Subtype entity
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4.
Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity?
Answer & Solution
Answer: (C) Archetype entity
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5.
In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.
Answer & Solution
Answer: (B) child
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