Ruby/Ruby on Rails certification

Sign in Sign in

Ruby/Ruby on Rails


Our Ruby test will help you understand your proficiency with using the Ruby programming language. This test covers the following topics: Anonymous Functions, Classes and Modules, Code Development, Collections, Concurrency and Networking, Debugging and Profiling, Files and Directories, Flow of Control, Numbers, Objects and Methods, Regular Expressions, and Strings. Difficulty level: for experienced programmers and architects.

Number of questions: 100
Time limit for question: 60 seconds

Which of the following modules generates JavaScript code that allows you to change the content and presentation of multiple DOM elements?

Choose one:
  • ActionView::Helpers::JavaScript::Generator
  • ActionView::Helpers::JavaScriptGenerator::GeneratorMethods
  • ActionView::Helpers::PrototypeHelper::JavaScriptGenerator::GeneratorMethods
  • ActionView::Helpers::JavaScriptGenerator::CodeGenerator::GenerateMethod

Which of the following statements is correct to check the uniqueness of a field and display the "already exists" message?

Choose one:
  • validates :category, :uniqueness => true, "already exists"
  • validates :category, :uniqueness => {:message => "already exists"}
  • validates :category, :uniqueness ("already exists")
  • validates :category, :uniqueness_with_message => "already exists"

Which of the following caching approaches should be used for caching various blocks within templates without caching everything as a whole?

Choose one:
  • Page
  • Fragment
  • Action
  • None of the above

Our certificates

Getting your career started and need to impress a potential employer? We can conduct any of our tests in a manner that will allow us to verify your identity and check that the test result is indeed your own work. If you pass the test, we will issue a certificate just like the one pictured. You will be then able to obtain both an electronic certificate suitable for sharing on Facebook and Linkedin, a corresponding badge on your personal page, and a downloadable PDF version for printing.

Certificate authencity can be verified with a special tool. Simply enter the certificate ID to verify claims of completion.

PDF version:
Online competence badge:
Certified in Ruby/Ruby on Rails
2017-11-18 #xxxx-xxx-xxx-xxx

Price: $5

Sign in Sign in