Ruby MCQs with answers Page - 4

Dear candidates you will find MCQ questions of Ruby here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.
Share your questions by clicking Add Question

📊 Ruby
Q. Why notation is used in Ruby?
  • (A) Formfeed
  • (B) Escape
  • (C) Carriage return
  • (D) Bell
💬 Discuss
✅ Correct Answer: (C) Carriage return
📊 Ruby
Q. Which notation is used for Octal notation?
  • (A) \s
  • (B) \xnn
  • (C) \n
  • (D) \nn
💬 Discuss
✅ Correct Answer: (D) \nn
📊 Ruby
Q. Which of the following datatypes are valid in Ruby?
  • (A) Numbers
  • (B) String C
  • (C) Boolean
  • (D) All of the above
💬 Discuss
✅ Correct Answer: (D) All of the above
📊 Ruby
Q. Why can not we use quotation marks ("or") with boolean?
  • (A) It indicates that we are talking about a string
  • (B) It indicates that we are assining a value
  • (C) It indicates that that we are replacing boolean data type with string data type
  • (D) None of the above
💬 Discuss
✅ Correct Answer: (A) It indicates that we are talking about a string
📊 Ruby
Q. What is the sequence of ruby strings?
  • (A) 16-bit bytes
  • (B) 8-bit bytes
  • (C) 4-bit bytes
  • (D) None of the above
💬 Discuss
✅ Correct Answer: (B) 8-bit bytes
📊 Ruby
Q. What is the output of the given code?
Code: 
my_string=Ruby
puts(my_string)
  • (A) Ruby
  • (B) Nil
  • (C) Error
  • (D) my_string
💬 Discuss
✅ Correct Answer: (C) Error

Explanation: Ruby should be written in double quotes inorder to indicate a string.

📊 Ruby
Q. single-quoted strings don`t allow ?
  • (A) substitution
  • (B) backslash notation
  • (C) single-quoted strings allow substitution and backslash notation.
  • (D) single-quoted strings don`t allow substitution and allow backslash notation.
💬 Discuss
✅ Correct Answer: (D) single-quoted strings don`t allow substitution and allow backslash notation.

Explanation: single-quoted strings don`t allow substitution and allow backslash notation only for \ and '.

📊 Ruby
Q. Which type of number(0b1011 ) is ?
  • (A) Octal
  • (B) Hexadecimal
  • (C) Binary
  • (D) Decimal
💬 Discuss
✅ Correct Answer: (C) Binary
📊 Ruby
Q. Objects of which class does the integer from the range -2^30 to 2^(30-1) belong to?
  • (A) Octal
  • (B) Bignum
  • (C) Fixnum
  • (D) Binary
💬 Discuss
✅ Correct Answer: (C) Fixnum

Explanation: Integer within this range are objects of the class fixnum.

📊 Ruby
Q. Objects of which class does the integer from the range -2^60 to 2^(60-1) belong to?
  • (A) Octal
  • (B) Bignum
  • (C) Fixnum
  • (D) Binary
💬 Discuss
✅ Correct Answer: (B) Bignum

Programming Categories

📱 Download Our App

Learn MCQs on the go with our easy-to-use Android app

Get it on Google Play