Database - Data Modeling with ER Model

Exercise : Data Modeling with ER Model - General Questions
16.
In which of the following is a single-entity instance of one type of related to a single-entity instance of another type?
One-to-One Relationship
One-to-Many Relationship
Many-to-Many Relationship
Composite Relationship
Answer: Option
Explanation:
No answer description is available. Let's discuss.

17.
Entities can be associated with one another in which of the following?
Entities
Attributes
Identifiers
Relationships
Answer: Option
Explanation:
No answer description is available. Let's discuss.

18.
Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator?
Supertype entity
Subtype entity
Archetype entity
Instance entity
Answer: Option
Explanation:
No answer description is available. Let's discuss.

19.
Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity?
Supertype entity
Subtype entity
Archetype entity
Instance entity
Answer: Option
Explanation:
No answer description is available. Let's discuss.

20.
In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.
parent
child
instance
subtype
Answer: Option
Explanation:
No answer description is available. Let's discuss.