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Ruby On Rails Online Test

Topics Covered

Ruby Basics, Control Flow in Ruby, Looping with Ruby, Array and Hashes, Blocks and Sorting, Hashes and Symbols, Blocks, Procs, and Lambdas, Object-Oriented Programming , Modules and Mixins, Working with Files, Metaprogramming, Controllers, Models

Useful for hiring

RoR Developer (2-4 yrs of experience)
RoR Programmer
Ruby on Rails Application Developer

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Test details:

Ruby on Rails coding test enables employers to identify & hire potential ROR developers. Therefore, an emphasis is laid upon evaluating the knowledge of applied skills gained through real work experience rather than theoretical knowledge.

The Ruby on Rails test contains MCQ's (Multiple Choice Questions), MAQ's (Multiple Answer Questions), Fill in the Blank, Descriptive, True or False.

Test Duration: 30 minutes

No. of Questions: 30

The Ruby on Rails online test contains a combination of application and theory questions that helps you to evaluate technical as well as practical skills of candidates.

Test description:

Ruby on Rails Online Test is created & validated by our global subject matter experts (SME)s to assess the Ruby programming skills of ROR developer on Rails - as per Industry Standards.

Ruby on Rails (RoR) is an open-source web application framework written in Ruby, an object-oriented programming language. Rails is a model–view–controller ( MVC ) framework, providing default structures for a database, a web service and web pages. It encourages and facilitates the use of web standards such as XML or JSON for data transfer and HTML, CSS, and JavaScript for display and user interfacing. In addition to MVC, Rails emphasizes on convention over configuration (CoC), don't repeat yourself (DRY) and the active record pattern. Ruby is an open source, dynamic programming language that supports multiple programming paradigms.

The Ruby on Rails programming test helps recruiters & hiring managers to validate skills of the candidates related to Ruby programming on Rails framework before hiring.

Online Ruby on Rails test contains questions on following Topics:

Ruby Basics
Control Flow in Ruby
Looping with Ruby
Array and Hashes
Blocks and Sorting
Hashes and Symbols
Blocks, Procs, and Lambdas
Object-Oriented Programming
Modules and Mixins
Working with Files
Metaprogramming
Controllers
Models

Screen under-qualified candidates using our scientifically designed Ruby on Rails knowledge test & spend the time interviewing only relevant candidates.

Our hiring analytics will be generated instantly which gives you a detailed analysis of technical skills related strengths & weaknesses of the candidates. It will help you in making better hiring decisions.

View Sample Questions

To randomize the order of entries in an Array, use the _______ method.

- sample
- shuffle
- random
- sort
- scramble

Determine the value of the variable x after the execution of the following code. x = [1,2,3] x.pop until x.empty? x.push(4) while x.empty?

- [1]
- [1,2,3,4]
- [4]
- [1,2,3]

How is it possible to refactor this class correctly?
class NullOrder
def price_euro
0.0
end
def price_usd
0.0
end
end

Note: There are multiple correct answers to this question.

- class NullOrder
  def price_euro
  0.0
  end
  alias price_usd price_euro
  end
- class NullOrder
  def price
  0.0
  end
  end
- class NullOrder
  def method_missing(m, *args, &block)
  m.to_s =~ /euro|usd/ ? 0.0 : super
  end
  end
- class NullOrder
  def method_missing(m, *args, &block)
  m.to_s =~ /price_/ ? 0.0 : super
  end
  end

Which return values are correct for Bar class?
class Bar
def initialize(*args)
@args = args
if args.size == 3
foo
else
calculate
end
end
def foo
@total = @args.inject(:+)
end
def calculate
total = 0
@args.each { |el| total += el if el % 2 == 0 }
@total = total
end
def total
@total
end
end

Note: There are multiple correct answers to this question.

- bar = Bar.new(1,2,3)
  bar.total # => 6
- bar = Bar.new(1,2,3,4,5)
  bar.total # => 6
- bar = Bar.new(1,2,3,1)
  bar.total # => 3
- bar = Bar.new(3,2,3)
  bar.total # => 3

How can you add a class 'contacts' for form_tag in rails view?

- <%= form_tag root_path, class: 'form-inline' do %>
  <%= text_field_tag :email %>
  <% end %>
- <%= form_tag root_path, html: { class: 'form-inline' } do %>
  <%= text_field_tag :email %>
  <% end %>
- <%= form_tag class: 'form-inline', root_path do %>
  <%= text_field_tag :email %>
  <% end %>
- <%= form_tag html: { class: 'form-inline' }, root_path do %>
  <%= text_field_tag :email %>
  <% end %>

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