MCQs on Introduction to Ruby | Ruby
Explore the basics of Ruby programming through 30 essential multiple-choice questions (MCQs), covering the language’s history, features, setup, and running Ruby code. Perfect for beginners and developers alike.
1. What is Ruby?
- Ruby is best described as a:
- A) High-level, interpreted, object-oriented programming language
- B) Low-level, compiled, functional programming language
- C) High-level, compiled, procedural programming language
- D) Low-level, interpreted, object-oriented programming language
- Ruby was created with a focus on:
- A) Speed and performance
- B) Simplicity and productivity
- C) Memory management
- D) Low-level system programming
- Ruby is primarily used for:
- A) Mobile app development
- B) Web development
- C) Embedded systems programming
- D) Desktop application development
- Which of the following is a defining feature of Ruby?
- A) Static typing
- B) Purely functional programming
- C) Object-oriented programming
- D) Low-level memory control
- Which programming paradigm does Ruby support?
- A) Object-Oriented Programming
- B) Functional Programming
- C) Procedural Programming
- D) All of the above
2. History of Ruby
- Who is the creator of Ruby?
- A) Larry Wall
- B) Yukihiro Matsumoto
- C) Dennis Ritchie
- D) Guido van Rossum
- Ruby was first released in which year?
- A) 1993
- B) 1995
- C) 1996
- D) 1998
- Ruby was influenced by which other programming languages?
- A) Python and Perl
- B) C and C++
- C) Java and C#
- D) Swift and Kotlin
- What was the primary goal of Ruby’s design?
- A) To be fast and lightweight
- B) To make programming enjoyable for developers
- C) To support multithreading
- D) To be compatible with existing codebases
- Which language’s creator is often credited for influencing Ruby’s design philosophy?
- A) Bjarne Stroustrup (C++)
- B) Dennis Ritchie (C)
- C) Larry Wall (Perl)
- D) James Gosling (Java)
3. Features and Uses of Ruby
- Which of the following is NOT a key feature of Ruby?
- A) Dynamic typing
- B) Automatic memory management (Garbage collection)
- C) Strict syntax requirements
- D) Rich standard library
- Ruby is known for its:
- A) Performance optimization
- B) Easy-to-read syntax
- C) Multithreading support
- D) Complex programming paradigms
- Ruby is commonly used in:
- A) Web development with Ruby on Rails
- B) Scientific computing
- C) Mobile app development with RubyMotion
- D) All of the above
- Ruby’s object-oriented features allow:
- A) Dynamic inheritance
- B) Multiple inheritance
- C) Class-based inheritance
- D) None of the above
- Which Ruby framework is widely used for web application development?
- A) Sinatra
- B) Ruby on Rails
- C) Django
- D) Laravel
4. Setting Up Ruby Development Environment
- Which software is required to run Ruby code on your computer?
- A) A Ruby interpreter
- B) A C++ compiler
- C) A Java Virtual Machine (JVM)
- D) Python compiler
- Which Ruby version manager is commonly used to manage Ruby versions on a system?
- A) rvm
- B) pyenv
- C) nvm
- D) virtualenv
- To install Ruby on a Linux-based system, you would typically use:
- A) apt-get or yum
- B) rubyinstall
- C) brew
- D) gem install
- Which integrated development environment (IDE) is commonly used for Ruby development?
- A) RubyMine
- B) PyCharm
- C) Visual Studio
- D) NetBeans
- Which Ruby tool is used to install libraries or gems?
- A) gem
- B) bundle
- C) rake
- D) irb
5. Running Ruby Code: IRB, Files, and Editors
- What does IRB stand for in Ruby?
- A) Integrated Ruby Block
- B) Interactive Ruby
- C) In-Depth Ruby Base
- D) Interactive Repl Block
- In IRB, how can you exit the session?
- A) exit
- B) quit
- C) Ctrl+D
- D) Both A and C
- To run a Ruby program stored in a file, you would use which command?
- A) ruby filename.rb
- B) ruby -f filename.rb
- C) run filename.rb
- D) execute filename.rb
- Which text editor is commonly used for Ruby development due to its support for Ruby syntax highlighting?
- A) Sublime Text
- B) Visual Studio Code
- C) Atom
- D) All of the above
- What command would you use in a terminal to run a Ruby file named
hello.rb?
- A) ruby hello.rb
- B) run hello.rb
- C) ruby-run hello.rb
- D) ruby -f hello.rb
- What is the correct syntax for defining a function in Ruby?
- A) def my_function()
- B) function my_function()
- C) def my_function{}
- D) function: my_function()
- In Ruby, what symbol is used to denote a comment?
- A) //
- B) ##
- C) #
- D) /*
- In Ruby, which file extension is used for Ruby source files?
- A) .ruby
- B) .rb
- C) .rbx
- D) .rubyx
- How do you print a message to the console in Ruby?
- A) echo “Hello”
- B) print(“Hello”)
- C) println(“Hello”)
- D) puts “Hello”
- Which editor feature can make writing Ruby code easier by showing suggestions and completing code snippets automatically?
- A) Syntax highlighting
- B) Code completion
- C) Version control
- D) Debugging tools
Answers Table:
| Qno | Answer |
|---|---|
| 1 | A) High-level, interpreted, object-oriented programming language |
| 2 | B) Simplicity and productivity |
| 3 | B) Web development |
| 4 | C) Object-oriented programming |
| 5 | D) All of the above |
| 6 | B) Yukihiro Matsumoto |
| 7 | C) 1996 |
| 8 | A) Python and Perl |
| 9 | B) To make programming enjoyable for developers |
| 10 | C) Larry Wall (Perl) |
| 11 | C) Strict syntax requirements |
| 12 | B) Easy-to-read syntax |
| 13 | D) All of the above |
| 14 | C) Class-based inheritance |
| 15 | B) Ruby on Rails |
| 16 | A) A Ruby interpreter |
| 17 | A) rvm |
| 18 | A) apt-get or yum |
| 19 | A) RubyMine |
| 20 | A) gem |
| 21 | B) Interactive Ruby |
| 22 | D) Both A and C |
| 23 | A) ruby filename.rb |
| 24 | D) All of the above |
| 25 | A) ruby hello.rb |
| 26 | A) def my_function() |
| 27 | C) # |
| 28 | B) .rb |
| 29 | D) puts “Hello” |
| 30 | B) Code completion |