Object Oriented Programming (OOP) Concepts in Ruby MCQ question and answer with solution

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Learn Object Oriented Programming (OOP) Concepts in Ruby MCQ Questions and answers with easy and logical explanations in Ruby Programming. Object Oriented Programming (OOP) Concepts in Ruby MCQ question provides all type of technical mcq questions which is important for technical exams, campus exams and other entrance examination. Page-2 section-1

What does the super keyword do in a Ruby class?

A) Calls the same method in the superclass B) Calls the same method in the subclass C) Returns the superclass D) Initializes a superclass object

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which of the following is a correct way to define a class method in Ruby?

A) def self.method_name B) def class.method_name C) class def method_name D) def method_name.self

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What is the purpose of the include keyword in Ruby classes?

A) To mix in methods from a module into a class B) To define a new method C) To create a new instance D) To inherit from another class

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

In Ruby, what does the extend keyword do?

A) Adds methods from a module as class methods B) Adds methods from a module as instance methods C) Initializes a new instance D) Calls a superclass method

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

What does the self keyword refer to in Ruby classes?

A) The current instance of the class B) The superclass of the class C) The class itself D) The class constructor

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

What is the purpose of the attr_reader method in Ruby classes?

A) To define getter methods for class attributes B) To define setter methods for class attributes C) To define both getter and setter methods for class attributes D) To define private methods for class attributes

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which keyword is used to access methods and variables within the same class in Ruby?

A) this B) self C) object D) instance

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Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

What is the purpose of the attr_writer method in Ruby classes?

A) To define setter methods for class attributes B) To define getter methods for class attributes C) To define both getter and setter methods for class attributes D) To define private methods for class attributes

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

In Ruby, what is a superclass?

A) The class from which a class inherits B) The class that inherits from another class C) The class that contains all other classes D) The class that has no superclass

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Answer & Solution

Answer: Option A

No explanation is given for this question. Let's Discuss on Board

Which keyword is used to define an instance method in Ruby?

A) method B) self C) def D) class

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Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

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Object Oriented Programming (OOP) Concepts in Ruby MCQ question and answer with solution | Ruby Programming MCQs