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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. Page-2 section-1

11
What does the join method do when used with an array in Ruby?
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Answer: Option A
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12
What does the keys method return when called on a hash in Ruby?
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Answer: Option A
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13
What is the output of "hello".length in Ruby?
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Answer: Option A
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14
Which method is used to check if an array includes a specific element in Ruby?
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Answer: Option A
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15
What is the output of ["apple", "banana", "cherry"].join(", ") in Ruby?
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Answer: Option A
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16
In Ruby, which method is used to remove the last element from an array and return it?
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Answer: Option A
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17
What does the '<<' operator do when used with arrays in Ruby?
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Answer: Option B
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18
Which method in Ruby is used to check if a key exists in a hash?
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Answer: Option D
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19
In Ruby, which method is used to add a key-value pair to a hash?
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Answer: Option D
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20
What is the result of the expression `"hello".split` in Ruby?
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Answer: Option C
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