Question 11 :
An aggregation is a stronger form of association relationship and is represented with a solid diamond at the aggregate end.
Question 12 :
The UML notation is useful for graphically depicting an object-oriented analysis or design model.
Question 13 :
Multiple inheritance allows a class to inherit features from more than one superclass.
Question 14 :
The reasons for overriding include extension, restriction, and optimization.
Question 15 :
An object's state is determined by its attribute values and links to other objects.