General Questions

Question 11 :

An attribute that names or identifies entity instances is a(n):


A). entity.
B). attribute.
C). identifier.
D). relationship.
Answer : Option C

Question 12 :

Properties that describe the characteristics of entities are called:


A). entities.
B). attributes.
C). identifiers.
D). relationships.
Answer : Option B

Question 13 :

In which of the following can many entity instances of one type be related to many entity instances of another type?


A). One-to-One Relationship
B). One-to-Many Relationship
C). Many-to-Many Relationship
D). Composite Relationship
Answer : Option C

Question 14 :

Entities of a given type are grouped into a(n):


A). database.
B). entity class.
C). attribute.
D). ERD.
Answer : Option B

Question 15 :

Which of the following is NOT a basic element of all versions of the E-R model?


A). Entities
B). Attributes
C). Relationships
D). Primary keys
Answer : Option D