Sales Completion Process Quiz

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What is the main purpose of a class diagram in object-oriented analysis?

To visualize the use cases and actors in a system
To represent the static structure of a system by showing the classes, their attributes, operations, and the relationships between them (correct)
To model the dynamic behavior of a system by showing the sequence of activities
To depict the package structure and dependencies in a system

What is the key difference between an interface and an implementation of a class in object-oriented programming?

An interface is a separate entity from a class, while an implementation is part of the class
An interface is used for inheritance, while an implementation is used for composition
An interface is a blueprint for a class, while an implementation is the actual code that runs
An interface defines the contract, while the implementation provides the actual behavior (correct)

Which of the following is NOT one of the three approaches to classification in object-oriented analysis?

Specialization
Generalization
Aggregation
Composition (correct)

What is the distinction between key abstractions and mechanisms in the design of object-oriented based systems?

Key abstractions are the high-level concepts, while mechanisms are the low-level implementation details (A) Signup and view all the answers

Which of the following is NOT a common type of object-oriented analysis approach?

Structural analysis (D) Signup and view all the answers

What is the primary purpose of a package diagram in object-oriented design?

To depict the package structure and dependencies in a system (D) Signup and view all the answers

What are the three minor elements of the object model?

Operation, association, and attribute (A) Signup and view all the answers

How many operations does a class typically offer its clients?

5 operations (B) Signup and view all the answers

In the given use case, what information is recorded for each patient?

Name, address, phone number, date of birth, health service number, and payment method (D) Signup and view all the answers

What is the concept of visibility in object-oriented programming?

The ability to prevent data from being accessed or modified from outside the class (C) Signup and view all the answers

What is the purpose of synchronization in object-oriented programming?

To ensure thread safety when multiple threads access shared resources (D) Signup and view all the answers

What is the concept of delegation in object-oriented programming?

The ability to pass responsibility for a specific task to another object (C) Signup and view all the answers

What is the primary focus of Object-Oriented Analysis (OOA)?

Identifying classes and objects from the problem domain (B) Signup and view all the answers

Which of the following is NOT a key step in Object-Oriented Design (OOD)?

Implementing class methods (D) Signup and view all the answers

What is the primary goal of Object-Oriented Programming (OOP)?

All of the above (D) Signup and view all the answers

Which principle of OOP allows objects of different classes to be treated as objects of a common superclass?

Polymorphism (C) Signup and view all the answers

What is the primary purpose of encapsulation in OOP?

To provide data hiding and abstraction (A) Signup and view all the answers

Which of the following is NOT a benefit of using OOP?

Faster execution time compared to procedural programming (B) Signup and view all the answers