Review questions Unit I

Question 1

What is the purpose of the super() keyword in Python?

Accepted Answer

To call the parent class's constructor

Question 2

What does YAGNI stand for?

Accepted Answer

You Ain't Gonna Need It

Question 3

How does OOP contribute to code reusability?

Accepted Answer

By allowing the creation of reusable classes and objects

Question 4

What is a "constructor" in OOP?

Accepted Answer

A method that initializes an object when it is created

Question 5

Inheritance in OOP allows a class to:

Accepted Answer

Extend the functionality of another class

Question 6

In OOP, what is an "Abstract Class"?

Accepted Answer

A class that cannot be instantiated and may contain abstract methods

Question 7

What does the KISS principle stand for?

Accepted Answer

Keep It Simple and Straightforward

Question 8

What is the main advantage of OOP over procedural programming?

Accepted Answer

Code reusability and modularity

Question 9

The Principle of Least Astonishment suggests that the behavior of a system should not surprise:

Accepted Answer

Both beginners and experts

Question 10

What is the concept of "encapsulation" in OOP?

Accepted Answer

Hiding the implementation details of an object

Question 11

What is Object-Oriented Programming (OOP)?

Accepted Answer

A programming paradigm based on the concept of object

Question 12

What is the main goal of Abstraction in OOP?

Accepted Answer

Simplifying complex systems by modeling classes based on real-world entitie

Question 13

Which access modifier is often used for private members in OOP?

Accepted Answer

private

Question 14

In OOP, what is the benefit of using interfaces?

Accepted Answer

Code reusability

Question 15

Which type of polymorphism is achieved through method overloading in Java or Python?

Accepted Answer

Compile-time polymorphism

Question 16

In OOP, what does "Encapsulation" refer to?

Accepted Answer

Hiding implementation details and restricting access to certain members

Question 17

What is the primary purpose of inheritance in OOP?

Accepted Answer

Code reusability

Question 18

What software design principle suggests favoring composition of classes over inheritance?

Accepted Answer

Composition Over Inheritance

Question 19

What is the purpose of "polymorphism" in OOP?

Accepted Answer

Allowing objects of diferent types to be treated as objects of a comon type

Question 20

How does polymorphism contribute to code flexibility?

Accepted Answer

By allowing objects of different types to be used interchangeably

Question 21

What does the DRY principle advocate for in software development?

Accepted Answer

Don't Repeat Yourself

Question 22

Which SOLID principle states that a class should have only one reason to change?

Accepted Answer

Single Responsibility Principle (SRP)

Question 23

Which of the following statements about interfaces is true?

Accepted Answer

Interfaces define a contract for implementing classes

Question 24

Which keyword is used to implement inheritance in Python?

Accepted Answer

class

Question 25

What does the Open-Closed Principle state?

Accepted Answer

A class should be open for extension but closed for modification

Question 26

The Law of Demeter suggests that an object should interact with:

Accepted Answer

Its immediate neighbors only

Question 27

What is a potential drawback of excessive use of inheritance?

Accepted Answer

Increased code complexity and tight coupling

Question 28

Which of the following is not a key principle of OOP?

Accepted Answer

Redundancy

Question 29

How does inheritance promote code reusability?

Accepted Answer

By allowing the creation of new classes based on existing ones

Question 30

What is a "class" in OOP?

Accepted Answer

A blueprint or template for creating objects

Question 31

In OOP, what is an "object"?

Accepted Answer

An instance of a class with properties and methods

Question 32

What is the primary benefit of encapsulation?

Accepted Answer

Improved security and control over data access

Question 33

What is the main purpose of Dependency Injection (DI) in software design?

Accepted Answer

To invert the control of dependency creation

Question 34

Which of the following is an example of abstraction in OOP?

Accepted Answer

Defining an abstract class

Question 35

What does the Separation of Concerns principle advocate for?

Accepted Answer

Separating different concerns into distinct modules

Review questions Unit I

Questions 35

Review questions Unit I

Questions 35