Ruby MCQ Questions

Ruby MCQ Questions

  • Satyam Jaiswal
  • 25th Nov, 2021

We are introducing here the best Ruby MCQ Questions, which are very popular & asked various times. This Quiz contains the best 25+ Ruby MCQ with Answers, which cover the important topics of Ruby Programming Language. for which, you can perform best in  Ruby Programming Language Exams, Interviews, and Placement activities.

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Ruby MCQ Questions and Answers

1) What is the extension used for saving the ruby file?

  • A. .rub
  • B..ruby
  • C..rb
  • D..rrb

2) What is Ruby?

  • A. stylesheet language
  • B.markup language
  • C.procedural language
  • D.scripting language

3) Is Ruby an object oriented general purpose programming language?

  • A. Yes
  • B.No
  • C.May be
  • D.Can't say

4) Ruby is designed by _________.

  • A. James Gosling
  • B.Yukihiro Matsumoto
  • C.Guido van Rossum
  • D.Martin Odersky

5) Ruby was created in which year?

  • A. 1991
  • B.1993
  • C.1994
  • D.1997

6) Which of the languages syntax matches with the Ruby’s syntax?

  • A. Java
  • B.Perl
  • C.Python
  • D.C++

7) The notation \b stands for

  • A. blank
  • B.bold
  • C.backspace
  • D.black

8) ________ datatypes are valid in Ruby.

  • A. Integer
  • B.String
  • C.Boolean
  • D.All of the above

9) Which of the following statement is not a feature of ruby?

  • A. Ruby can not be connected to Database
  • B.Ruby is interpreted programming language
  • C.Ruby can be embedded into HTML.
  • D.None of the above

10) Ruby can be embedded into Hypertext Markup Language.

  • A. Yes
  • B.No
  • C.May be
  • D.Can't say

11) Which of the following is not a valid datatype in Ruby?

  • A. Integer
  • B.String
  • C.Timedate
  • D.Float

12) Is Ruby a case-sensitive language?

  • A. Yes
  • B.No
  • C.May be
  • D.Can't say

13) Which of the following is the valid string method?

  • A. .upcase method
  • B..downcase method
  • C..length method
  • D..irreverse method

14) Methods should be written inside double quotes.

  • A. Yes
  • B.No
  • C.May be
  • D.Can't say

15) What is a controller?

  • A. When the order matters, use an array.
  • B.It’s a test that simulates a browser accessing our application.
  • C.An array uses indices and a hash uses “keys”
  • D.A controller is a container for a group of web pages.

16) _______ character is used to give comment in ruby.

  • A. $
  • B.@
  • C.#
  • D.%

17) What error does the if condition gives if not terminated with end statement?

  • A. Syntax error
  • B.Expecting keyword end
  • C.Unexpected end
  • D.All of the above

18) If statement inside if statement is called Nested if statements.

  • A. True
  • B.False

19) Which of the following is valid conditional statement?

  • A. elif
  • B.else
  • C.else if
  • D.if else

20) Block comment conceals several lines from the interpreter with ______.

  • A. =start and =end
  • B.=end
  • C.=begin and =end
  • D.=here and =end

21) Which of these is not a valid library function?

  • A. Print
  • B.Gets
  • C.Get
  • D.Puts

22) Why do we use comments?

  • A. It is an efficient way of programming
  • B.It makes easy for the third person to understand
  • C.Both A and B
  • D.None of the above

23) What is the size of an integer data type in ruby?

  • A. -2^30 to 2^29
  • B.-2^30 to 2^30
  • C.-2^29 to 2^29
  • D.-2^30 to 2^28

24) Ruby can deal with both numbers and floating point values.

  • A. Yes
  • B.No
  • C.May be
  • D.Can't say

25) What is the sequence of ruby strings?

  • A. 16-bit bytes
  • B.4-bit bytes
  • C.32-bit bytes
  • D.8-bit bytes

26) What is the range of octal notation?

  • A. 0-9
  • B.0-A
  • C.0-7
  • D.None of the above

27) How to includes all stylesheet files?

  • A. <%= link_to ... %>
  • B.<%= javascript_include_tag :defaults %>
  • C.<%= stylesheet_link_tag :all %>
  • D.None of the above

28) Ruby can deal with both numbers and floating point values.

  • A. True
  • B.False

29) Is Ruby a strongly typed language?

  • A. Yes
  • B.No
  • C.May be
  • D.Can't say

30) Which of the following are valid floating point literal in ruby?

  • A. 0.1
  • B.0.5
  • C.0.2
  • D.None of the above

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