- What is a class?
- What is an object?
- What is a module? Can you tell me the difference between classes and modules?
- Can you tell me the three levels of method access control for classes and modules? What do they imply about the method?
- There are three ways to invoke a method in ruby. Can you give me at least two?
- Explain this ruby idiom: a ||= b
- What does self mean?
- What is the difference between lambda, block and proc?
- How do you sort an Array of objects by a particular attribute? What is a better way to do sorting with ActiveRecord?
- What are some of your favorite gems? What are their alternatives?
- In Ruby, which is generally the better option: a recursive function or an iterative one?
- What are #method_missing and #send? Why are they useful?
- What makes Ruby different from other programming languages?
- What do you mean by Meta Programming?
- Explain how everything is an object in Ruby.
- How would you explain the Ruby OOP model?
- Define block, proc and lambda and give difference between them.
- What is difference between String and Symbol?
- What is difference between includes and extends?
- What is difference between ==, ===, eql? and equal??
- What is new in Rails 4?
- What are the advantages and disadvantages of using Ruby on Rails in Web Development?
- Explain MVC in terms of Rails.
- Explain the different pieces of Rails or What are different components of Ruby on Rails?.
- Walk through the flow of a request through Rails.
- Give list of frameworks which is similar to Rails.
- What are the different server options for running a Rails/Rack app?
- Explain CSRF and how Rails combats it.
- Explain mass-assignment vulnerability.
- What is Rack?
- What is middleware? How does it compare to controller filters/actions?
- Explain various forms of caching available in Rails.
- How is something like 30.seconds.ago implemented?
- Give difference between last 3 versions of Rails.
- What are the major improvements in Rails 5.0?
- What do you mean by ORM?
- What is Self-Referential Association aka Self Join?
- List down types of associations in Rails.
- What is functionality of Helpers?
- Explain eagerloading.
- What is ActiveRecord?
- Explain Active Record Callbacks.
- Explain Filters.
- Define resource, resources, collection and namespace in terms of routes.
- What things we can define within Model?
- What is Asset Pipeline?
- How parsing has been done from ERB file to HTML?
- What is difference between Render and Redirect?
- What is difference between Gems and Plugins?
- What is difference between save and save!
- What is difference between find and find_by_xxx method?
- What is difference between form_for and form_tag?
- What is difference between Application Server and Web Server?
- List down servers supported by Rails.
- What is difference between TDD and BDD?
- What are the testing tools available for rails and which one you have used ?
- What do you mean by Agile Development?
- What is difference between Gemfile and Gemfile.lock?
- What are your favourite Gems?