Test Your Knowledge: Ruby Programming Language

Question 1

1/11

Who created the Ruby programming language?

Matz

Answer

Yukihiro Matsumoto

Answer

Guido van Rossum

Answer

Larry Wall

Question 2

2/11

In which year was Ruby first released?

1995

2000

2005

Answer

class MyClass { }

Answer

def MyClass: end

Answer

MyClass = Class.new

Answer

Returns the index of an element in an array

Answer

Performs a mathematical operation

Answer

Reads input from the user

Answer

Sorts an array in ascending order

Answer

Joins two arrays together

Answer

Finds the maximum value in an array

Answer

The parent object

Answer

A reserved keyword for method naming

Answer

The global scope

Answer

To run Ruby scripts

Answer

To create new Ruby classes

Answer

To install Ruby on a system

Question 3

3/11

What is the default file extension for Ruby files?

.rb

.py

.java

.cpp

Question 4

4/11

Which of the following is a valid way to define a class in Ruby?

class MyClass end

Question 5

5/11

What does the 'puts' method do in Ruby?

Outputs a string to the console with a newline

Question 6

6/11

Which of the following is not a valid Ruby variable name?

my_var

_myVar

2var

myVar

Question 7

7/11

What does the 'each' method do in Ruby?

Iterates over each element in an array

Question 8

8/11

Which operator is used for string concatenation in Ruby?

&

+=

+

|

Question 9

9/11

What does the 'self' keyword refer to in Ruby?

The current object or class

Question 10

10/11

What type of programming language is Ruby?

Interpreted

Compiled

Assembly

Machine

Question 11

11/11

What is the primary use of the 'gem' command in Ruby?

To manage Ruby libraries and dependencies