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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-4 section-1

31
What does the `split` method do when called on a string in Ruby?
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Answer & Solution
Answer: Option D
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32
In Ruby, how can you add a key-value pair to an existing hash?
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Answer & Solution
Answer: Option D
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33
What does the `each_key` method do when called on a hash in Ruby?
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Answer & Solution
Answer: Option B
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34
Which of the following methods is used to check if a key exists in a hash in Ruby?
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Answer & Solution
Answer: Option A
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35
In Ruby, which method is used to convert a string to uppercase?
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Answer & Solution
Answer: Option B
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36
What does the `reverse` method do when called on a string in Ruby?
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Answer & Solution
Answer: Option A
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37
Arrays can be used to store multiple values in one single variable.
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Answer & Solution
Answer: Option A
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38
What is the output of the given code?
string_array = ["a","e","i","o","u"]
boolean_array = ["True","False"]
puts string_array[3]
puts boolean_array[1]
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Answer & Solution
Answer: Option C
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39
What will be the output of the following?
array1 = [1,2,3]
array2 = [0,0,0]
if array1 >= array2
print "Greater or equal"
else 
    print "Not equal"
end
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Answer & Solution
Answer: Option C
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40
What is the output of the given code?
string_array = ["a","e","i","o","u"]
print string_array[3]
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Answer & Solution
Answer: Option C
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