Aggregation is which of the following?
A. Expresses a part-of relationship and is a stronger form of an association relationship.
B. Expresses a part-of relationship and is a weaker form of an association relationship.
C. Expresses an is-a relationship and is a stronger form of an association relationship.
D. Expresses an is-a relationship and is a weaker form of an association relationship.
Answer: Option A
This Question Belongs to Database >> Object Oriented Data Modeling
Join The Discussion
Comments ( 1 )
The fact that the same operation may apply to two or more classes is called what?
A. Inheritance
B. Polymorphism
C. Encapsulation
D. Multiple classification
The object-oriented development life cycle is which of the following?
A. Analysis, design, and implementation steps in the given order and using multiple iterations.
B. Analysis, design, and implementation steps in the given order and going through the steps no more than one time.
C. Analysis, design, and implementation steps in any order and using multiple iterations.
D. Analysis, design, and implementation steps in any order and going through the steps no more than one time.
Multiplicity is the same as what concept for an ERD?
A. Relationship
B. Attribute
C. Entity
D. Cardinality
Composition is a stronger form of which of the following?
A. Aggregation
B. Encapsulation
C. Inheritance
D. All of the above
the answer should be B because the composition is stronger than Aggregation.