Online Ruby Test
Ruby is an important object-oriented scripting language used on Rails web framework. Are you a beginner or a Ruby expert? If yes, take this quiz, it's for you.
- 1.
Ruby was designed and developed by who and in what year?
- A.
Larry Wall in 1987
- B.
Yukihiro Matsumoto in 1993
- C.
James Gosling in 1995
- D.
Bjarne Stroustrup in 1979
Correct Answer
B. Yukihiro Matsumoto in 1993 -
- 2.
$LOAD_PATH is used to
- A.
Make Ruby aware that included files must be searched in the current directory
- B.
Include statement in a class
- C.
Show multiple inheritance
- D.
Terminate a string
Correct Answer
A. Make Ruby aware that included files must be searched in the current directory -
- 3.
Which of the following is not a feature of object-oriented programming language?
- A.
Data Encapsulation
- B.
Data Abstraction
- C.
Polymorphism
- D.
Morphism
Correct Answer
D. Morphism -
- 4.
The blueprint from which individual objects are created is
- A.
A class
- B.
An object
- C.
A variable
- D.
A string
Correct Answer
A. A class -
- 5.
Which of the following variables are not available across classes?
- A.
Class variables
- B.
Local variables
- C.
Global variables
- D.
Instance variables
Correct Answer
C. Global variables -
- 6.
The variables that are defined in a method are
- A.
Global variables
- B.
Local variables
- C.
Instance variables
- D.
Class variables
Correct Answer
B. Local variables -
- 7.
Which of the following is a constant resolution operator?
- A.
::
- B.
[ ] [ ]=
- C.
**
- D.
! ~ + -
Correct Answer
A. :: -
- 8.
The same block of codes in a specified number of times can be executed by
- A.
Strings
- B.
Conditional statements
- C.
Variables
- D.
Loops
Correct Answer
D. Loops -
- 9.
Which of the following blocks are executed in the order they are encountered?
- A.
MAIN block
- B.
END block
- C.
BEGIN block
- D.
ACTUAL block
Correct Answer
C. BEGIN block -
- 10.
Which of the following is a means of embedding the value of any Ruby expression into a string using #{ and } −
- A.
Expression substitution
- B.
General delimited strings
- C.
Escape characters
- D.
Character encoding
Correct Answer
A. Expression substitution -
Quiz Review Timeline +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
-
Current Version
-
Mar 19, 2022Quiz Edited by
ProProfs Editorial Team -
Feb 25, 2018Quiz Created by
Stephanie Young
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