Q.1
An attribute describes the entity's characteristics.
Q.2
When designing a database, first identify the entities, then determine the attributes, and finally establish the relationships.
Q.3
In which of the following is a single-entity instance of one type of related to a single-entity instance of another type?
Q.4
Entities can be associated with one another in which of the following?
Q.5
Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator?
Q.6
A subtype entity is a special case of another entity called a supertype entity.
Q.7
Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity?
Q.8
In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.
Q.9
An attribute that names or identifies entity instances is a(n):
Q.10
Properties that describe the characteristics of entities are called:
Q.11
In which of the following can many entity instances of one type be related to many entity instances of another type?
Q.12
Which of the following refers to something that can be identified in the user's work environment, something that the users want to track?
Q.13
In which of the following is a single-entity instance of one type related to many entity instances of another type?
Q.14
Which of the following refers to an entity in which the identifier of one entity includes the identifier of another entity?
Q.15
Which type of entity is related to two or more associated entities that each contain specialized attributes that apply to some but not all of the instances of the entity?
0 h : 0 m : 1 s