Data Modeling with ER Model Questions and Answers
Practice ModeShowing 10 of 20 questions
Q11
An attribute that names or identifies entity instances is a(n):
Answer: Option C
Q12
Properties that describe the characteristics of entities are called:
Answer: Option B
Q13
In which of the following can many entity instances of one type be related to many entity instances of another type?
Answer: Option C
Q14
Entities of a given type are grouped into a(n):
Answer: Option B
Q15
Which of the following is NOT a basic element of all versions of the E-R model?
Answer: Option D
Q16
In which of the following is a single-entity instance of one type of related to a single-entity instance of another type?
Answer: Option A
Q17
Entities can be associated with one another in which of the following?
Answer: Option D
Q18
Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator?
Answer: Option B
Q19
Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity?
Answer: Option C
Q20
In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity.
Answer: Option B