OOAD 1

To hide the internal implementation of an object we use …

• Inheritance

• Encapsulation

• Polymorphism

• None of these

What is a use case diagram?

• A diagram used to model the classes and their relationships in the system

• A diagram used to model the flow of activities in the system

• A diagram used to model the interactions between users and the system

• All of these

What is an actor in a use case diagram?

• A person, organization, or system that interacts with the system

• A class that interacts with the system

• A method that interacts with the system

• None of the above

Which of the following is not a fundamental design principle of object-oriented analysis and design?

• Encapsulation

• inheritance

• Polymorphism

• Iteration

Coupling is

• The degree to which two classes are related to each other

• The degree to which two classes are independent of each other

• The degree to which two classes share a common interface

• The degree to which two classes are related to each other.

…………………… is the same operation may behave differently for different classes.

• Polymorphism

• encapsulation

• Inheritance

• Abstraction

Which OO concept handle complexity by hiding unnecessary details from the user?

• polymorphism

• abstraction

• inheritance

• encapsulation

Which diagram represents the static, structural, data aspects of a system?

• Sequence

• State chart

• Collaboration

• Class

UML stands for …………………….

• Unified managing Language

• Uniform modeling language

• Unified Modeling Language

• None of the above

What is the process of defining two or more methods within same class that have same name but different parameters declaration?

• Method overriding

• method overloading

• method Hiding

• None of the above