Object-Oriented Programming: Interactive Learning Quizzes for Advanced Diploma in Healthcare

Question 1

Which of the following is **not** a core principle of object-oriented programming?

Accepted Answer

Modularity

Answer

Encapsulation

Answer

Inheritance

Answer

Polymorphism

Question 2

Which of the following is **not** a fundamental characteristic of object-oriented programming (OOP)?

Accepted Answer

Recursion

Answer

Encapsulation

Answer

Inheritance

Answer

Polymorphism

Question 3

What term defines a blueprint that specifies an object's properties and behaviors?

Accepted Answer

Class

Answer

Instance

Answer

Method

Answer

Attribute

Question 4

Which access modifier is NOT included within the Java programming language?

Accepted Answer

internal

Answer

public

Answer

private

Answer

protected

Question 5

Identify the fundamental principle of OOP that encompasses bundling data with methods operating on that data:

Accepted Answer

Encapsulation

Answer

Inheritance

Answer

Polymorphism

Answer

Abstraction

Question 6

Which access modifier strictly restricts access to class members within the class itself?

Accepted Answer

Private

Answer

Public

Answer

Protected

Answer

Default

Question 7

What is the primary purpose of the 'this' keyword in Java?

Accepted Answer

Referencing the current object

Answer

Invoking a constructor from another constructor

Answer

Accessing static members of the class

Answer

Overriding methods in a subclass

Question 8

Select the advantage of inheritance in OOP that enables the creation of new classes with extended functionality:

Accepted Answer

Code reusability

Answer

Encapsulation

Answer

Polymorphism

Answer

Data hiding

Question 9

Identify the type of polymorphism that allows different subclasses to provide unique implementations of the same method:

Accepted Answer

Method overriding

Answer

Method overloading

Answer

Constructor overloading

Answer

Operator overloading

Question 10

What is the primary role of an interface in OOP?

Accepted Answer

Enforcing a contract that implementing classes must adhere to

Answer

Creating objects with specific behaviors

Answer

Providing multiple implementations of a single method

Answer

Inheriting functionality from other classes

Question 11

Select the advantage of OOP that is particularly beneficial in healthcare software development:

Accepted Answer

Improved code maintainability

Answer

Enhanced data security

Answer

Reduced development time

Answer

Lower hardware requirements

Question 12

What is the term used to describe the creation of a new object from a class?

Accepted Answer

Instantiation

Answer

Initialization

Answer

Construction

Answer

Invocation

Question 13

Which design pattern is commonly employed in OOP to provide a controlled way of creating objects?

Accepted Answer

Factory pattern

Answer

Observer pattern

Answer

Singleton pattern

Answer

Adapter pattern

Question 14

Which of the following is a cornerstone of object-oriented programming?

Accepted Answer

Encapsulation

Answer

Global data storage

Answer

Linear data flow

Answer

Procedural execution

Question 15

In OOP, what is the primary purpose of a class?

Accepted Answer

To define object attributes and behavior

Answer

To execute code

Answer

To construct user interfaces

Answer

To store data

Question 16

Which of the following is NOT an advantage of inheritance?

Accepted Answer

Increased complexity

Answer

Code reuse

Answer

Reduced maintenance

Answer

Polymorphism

Question 17

What is the key distinction between an interface and an abstract class?

Accepted Answer

An interface specifies method signatures only, while an abstract class can include method implementations.

Answer

An interface can be instantiated, unlike an abstract class.

Question 18

In Java, what is the role of the 'super' keyword?

Accepted Answer

To invoke the parent class constructor

Answer

To access private members of the parent class

Answer

To create a new instance of the parent class

Answer

To override parent class methods

Question 19

Which Java access modifier is valid?

Accepted Answer

protected

Answer

private protected

Answer

public protected

Answer

internal

Question 20

Which of the following is NOT a core principle of object-oriented programming (OOP)?

Accepted Answer

Procedural abstraction

Answer

Polymorphism

Answer

Encapsulation

Answer

Inheritance

Question 21

What is the process of creating a new instance of an object called?

Accepted Answer

Instantiation

Answer

Initialization

Answer

Invocation

Answer

Implementation

Question 22

What is the primary purpose of a constructor in a class?

Accepted Answer

Initialize object attributes upon creation

Answer

Define the behavior of the object

Answer

Enforce data validation

Answer

Provide access to private members

Question 23

Which of the following is a primary advantage of using inheritance in OOP?

Accepted Answer

Enhances code reusability and maintainability

Answer

Enhances performance

Answer

Improves security

Answer

Reduces memory usage

Question 24

What is the fundamental difference between a class and an object?

Accepted Answer

A class is a blueprint, while an object is a specific instance

Answer

A class is abstract, while an object is concrete

Answer

A class has methods, while an object has attributes

Answer

A class is global, while an object is local

Question 25

Which access modifier makes class members accessible only within the class itself?

Accepted Answer

private

Answer

public

Answer

default

Answer

protected

Question 26

What is the main purpose of polymorphism in OOP?

Accepted Answer

Allows objects to exhibit different behaviors based on their class

Answer

Enforces data consistency

Answer

Improves code readability

Question 27

Which of the following is a best practice when designing classes in OOP?

Accepted Answer

Adhere to the SOLID principles

Answer

Avoid using abstract classes

Answer

Make all methods public

Answer

Use as many inheritance levels as possible

Question 28

What is the role of an interface in OOP?

Accepted Answer

Defines a contract that must be implemented by classes

Answer

Provides a way to create multiple inheritance

Answer

Enforces data validation

Question 29

Which of the following is a core concept of object-oriented programming (OOP)?

Accepted Answer

Objects

Answer

Modules

Answer

Functions

Answer

Arrays

Question 30

What is the term for creating a new instance of an object from an existing class?

Accepted Answer

Instantiation

Answer

Inheritance

Answer

Encapsulation

Answer

Composition

Question 31

Which statement about inheritance is incorrect?

Accepted Answer

Inheritance enables code reuse but does not allow for customization.

Answer

Inheritance promotes code maintainability.

Answer

Inheritance supports polymorphism.

Answer

Inheritance establishes an 'is-a' relationship between classes.

Question 32

What is the primary purpose of encapsulation in OOP?

Accepted Answer

To protect an object's data from unauthorized access.

Answer

To improve code performance

Answer

To enhance code readability

Question 33

Which of the following best exemplifies polymorphism in OOP?

Accepted Answer

A method with the same name behaves differently when called by different objects.

Answer

An object's data is hidden from other objects.

Answer

An object can inherit from multiple parent classes.

Question 34

What is the primary use of the 'this' keyword in Java OOP?

Accepted Answer

To refer to the current object.

Answer

To access static variables

Answer

To create a new object

Answer

To call a method from another object

Question 35

Which of the following is a key advantage of using OOP in healthcare-related software development?

Accepted Answer

Enhanced code maintainability and extensibility

Answer

Increased code complexity

Answer

Reduced memory consumption

Answer

Limited data security

Question 36

How do classes and objects differ in OOP?

Accepted Answer

A class is a blueprint for creating objects, while an object is an instance of that blueprint.

Answer

An object is a blueprint for creating classes, while a class is an instance of that blueprint.

Answer

They are essentially the same concept.

Question 37

Which access modifier is used to restrict access to a member variable within the same class?

Accepted Answer

private

Answer

default

Answer

protected

Answer

public

Question 38

What is the primary function of a constructor in OOP?

Accepted Answer

To initialize an object when it is created

Answer

To define the behavior of an object

Answer

To provide access to the object's data

Answer

To destroy an object when it is no longer needed

Question 39

Which fundamental characteristic of object-oriented programming (OOP) allows data and methods to be bundled together into discrete units?

Accepted Answer

Encapsulation

Answer

Inheritance

Answer

Modularity

Answer

Polymorphism

Question 40

In OOP, what is the primary purpose of a class?

Accepted Answer

To define a blueprint or template for creating objects

Answer

To provide user interface elements

Answer

To execute code

Answer

To store and retrieve data

Question 41

What is the term for the process of creating a new object from a class?

Accepted Answer

Instantiation

Answer

Encapsulation

Answer

Polymorphism

Answer

Inheritance

Question 42

Which of the following is NOT considered an advantage of using OOP in software development?

Accepted Answer

Increased code complexity

Answer

Improved modularity

Answer

Code reusability

Answer

Enhanced maintainability

Question 43

What is the term for a class that inherits properties and methods from another class?

Accepted Answer

Subclass

Answer

Abstract class

Answer

Interface

Answer

Superclass

Question 44

Which OOP principle allows objects to behave differently based on their type or class?

Accepted Answer

Polymorphism

Answer

Encapsulation

Answer

Abstraction

Answer

Inheritance

Question 45

In OOP, what is the role of an interface?

Accepted Answer

To define a contract that classes must implement

Answer

To execute code

Answer

To create new objects

Answer

To store and manipulate data

Question 46

What key benefits does OOP offer for healthcare software development?

Accepted Answer

Modularity, maintainability, code reuse

Answer

Reduced bugs, real-time data processing

Answer

Improved user experience, faster development

Question 47

How does OOP contribute to the efficiency of healthcare information systems?

Accepted Answer

By enabling object-oriented data modeling and data sharing

Answer

By providing enhanced user interfaces

Answer

By reducing the need for manual data entry