Methods in Ruby MCQ question and answer with solution

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What does the private keyword do in Ruby?

A) Makes methods accessible from outside the class B) Restricts access to methods below it C) Makes methods accessible from anywhere in the code D) None of the above

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Answer & Solution

Answer: Option B

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Which of the following is true about optional parameters in Ruby methods?

A) They must be specified during method definition B) They have default values assigned C) They are always required D) They cannot be used with block parameters

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Answer: Option B

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In Ruby, which method is used to check if an object responds to a certain method?

A) method_defined? B) respond_to? C) has_method? D) check_method

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Answer & Solution

Answer: Option B

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What does the `super` keyword do in Ruby?

A) Calls the method with the same name in the superclass B) Calls the method with the same name in the subclass C) Returns the superclass of the current class D) Jumps to the next iteration of the loop

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Answer: Option A

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What is the purpose of the `alias` keyword in Ruby?

A) To create an alias for a method B) To define a new method C) To remove a method D) To call a method with a different name

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Answer & Solution

Answer: Option A

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What is the purpose of the yield keyword in Ruby?

A) To exit a method B) To call another method C) To define a block D) To pass control and arguments to a block

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Answer & Solution

Answer: Option D

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Which of the following is a correct way to define a method that takes multiple arguments in Ruby?

A) def method(arg1, arg2) B) def method(arg1, arg2); end C) def method(arg1 arg2); end D) def method(arg1 arg2)

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Answer: Option A

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In Ruby, what does the attr_reader method do?

A) Defines a setter method B) Defines a getter method C) Defines both getter and setter methods D) None of the above

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Answer & Solution

Answer: Option B

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What is the purpose of the alias_method keyword in Ruby?

A) To create an alias for a method B) To define a new method C) To remove a method D) To call a method with a different name

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Answer & Solution

Answer: Option A

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In Ruby, which keyword is used to define a class method?

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

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Answer & Solution

Answer: Option A

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Methods in Ruby MCQ question and answer with solution | Ruby Programming MCQs