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Week 02 - Object Oriented Flashcards | StudBud

Explore/Week 02 - Object Oriented

Week 02 - Object Oriented

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This quiz contains 20 multiple-choice questions covering key Object-Oriented Programming (OOP) concepts in C#. Topics include Classes and Objects, Inheritance, Encapsulation, Polymorphism, and Abstract Classes. Test your knowledge, from beginners to advanced, assess your understanding of fundamental C# programming concepts and improve your OOP skills with this quiz.

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Questions 10

Answers

1
In C#, a derived class can have only one direct base class.
False
True
2
Which access modifier restricts access to class members within the same class?
protected
internal
public
private
3
Which keyword is used to denote inheritance in C#?
base
: (colon)
extends
inherit
4
Which keyword is used to create an object of a class in C#?
class
instance
new
object
5
How do you declare an abstract class in C#?
Using the abstract keyword
Using the static keyword
Using the sealed keyword
Using the class keyword
6
What is an abstract class in C#?
A class that cannot have data members
A class that is open for extension
A class that cannot be instantiated
A class with only abstract methods
7
Polymorphism in C# allows:
A class to inherit from multiple classes
An object to change its type at runtime
An object to have multiple states
A class to have multiple constructors
8
What is encapsulation in C#?
Inheriting from multiple classes
Implementing abstract classes
Hiding data within a class
Defining constructors
9
Which concept of polymorphism is achieved by method overriding?
Operator overloading
Static polymorphism
Compile-time polymorphism
Run-time polymorphism
10
What is a class in C#?
A blueprint for creating objects
A type of variable
A method for inheritance
An instance of an object