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Q. What does the term "immutability" refer to in Ruby?
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Q. What does the 'r+' file mode in Ruby signify?
Q. When Whitespace characters such as spaces and tabs can not ignored in Ruby code?
Q. What is the purpose of the cycle method in Ruby enumerators?
Q. What is the result of the expression: 9 / 2 in Ruby?
Q. Which of the following is not a valid datatype?
Q. In range operator ... is used for ?
Q. What is the purpose of inheritance in OOP?
Q. Which method in Ruby is used to check if a key exists in a hash?
Q. How do you pass arguments to a method in Ruby?
Q. In Ruby, what is the purpose of the `include` keyword in a class definition?
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