Ruby on Rails Ruby on Rails MVC Architecture & Routing

Question 1

In Rails MVC, which layer is responsible for handling HTTP requests and coordinating between the Model and View?

Accepted Answer

Controller

Answer

The Controller receives HTTP requests, interacts with the Model for data, and passes that data to the View for rendering.

Question 2

Which Rails file defines the mapping between URLs and controller actions?

Accepted Answer

routes.rb

Answer

config/routes.rb is where you define URL patterns and their corresponding controller#action mappings.

Question 3

What does the Rails helper `resources :articles` generate in routes.rb?

Accepted Answer

Seven RESTful routes for the articles resource

Answer

`resources :articles` generates all seven standard RESTful routes: index, show, new, create, edit, update, and destroy.

Question 4

In Rails, where do you place shared application layout files that wrap all views?

Accepted Answer

app/views/layouts/

Answer

Application layout files (e.g., application.html.erb) are stored in app/views/layouts/ and wrap the rendered view content.

Question 5

Which method in a Rails controller renders a specific view template explicitly?

Accepted Answer

render

Answer

The `render` method explicitly specifies which template to render, overriding Rails' default convention-based rendering.

Ruby on Rails Practice Test