Database - Data Modeling with ER Model

Exercise : Data Modeling with ER Model - General Questions
11.
An attribute that names or identifies entity instances is a(n):
entity.
attribute.
identifier.
relationship.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

12.
Properties that describe the characteristics of entities are called:
entities.
attributes.
identifiers.
relationships.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

13.
In which of the following can many entity instances of one type be related to many entity instances 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.

14.
Entities of a given type are grouped into a(n):
database.
entity class.
attribute.
ERD.
Answer: Option
Explanation:
No answer description is available. Let's discuss.

15.
Which of the following is NOT a basic element of all versions of the E-R model?
Entities
Attributes
Relationships
Primary keys
Answer: Option
Explanation:
No answer description is available. Let's discuss.