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Arrays, Hashes and Strings in Ruby MCQ question and answer with solution | Ruby Programming MCQs

Learn Arrays, Hashes and Strings in Ruby MCQ Questions and answers with easy and logical explanations in Ruby Programming. Arrays, Hashes and Strings in Ruby MCQ question provides all type of technical mcq questions which is important for technical exams, campus exams and other entrance examination.

1
Which method in Ruby is used to add an element to the end of an array?
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Answer: Option A
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2
What will array.size return in Ruby, if array = [1, 2, 3, 4, 5]?
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Answer: Option A
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3
Which method is used to access the value associated with a specific key in a hash in Ruby?
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Answer: Option C
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4
What is the output of "hello".reverse in Ruby?
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Answer: Option A
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5
In Ruby, how do you convert a string to an array of characters?
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Answer: Option B
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6
Which of the following methods is used to merge two hashes together in Ruby?
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Answer: Option A
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7
What does the << operator do when used with a string in Ruby?
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Answer: Option A
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8
How do you check if a key exists in a hash in Ruby?
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Answer: Option D
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9
What is the output of "hello".upcase in Ruby?
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Answer: Option C
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10
Which method in Ruby is used to remove and return the last element of an array?
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Answer: Option A
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