Ruby on Rails Test 1

Question 1

The representation of a resource is referred to as...

Accepted Answer

Web page

Answer

In the context of web development and RESTful principles often followed by frameworks like Ruby on Rails, a 'resource' (such as a user or a product) is typically represented to the user through a web page. This web page displays the resource's data and often provides interfaces for interacting with it, such as editing or deleting. It serves as the visual and interactive representation of the underlying data.

Question 2

What is the distinction between model and controller names?

Accepted Answer

model names are singular, controller (and table) names are plural

Answer

Ruby on Rails adheres to strict naming conventions as part of its 'convention over configuration' philosophy. Model names are conventionally singular (e.g., `User`), representing a single instance of a resource. In contrast, controller names and their corresponding database table names are plural (e.g., `UsersController`, `users` table), as they typically handle collections of those resources.

Question 3

What design pattern is frequently used in rail models?

Accepted Answer

ActiveRecords

Answer

Ruby on Rails heavily utilizes the Active Record design pattern for its models. Active Record provides an object-relational mapping (ORM) system that maps database tables to Ruby classes and rows to objects. This allows developers to interact with the database using Ruby objects and methods, greatly simplifying data persistence and retrieval within the application.

Question 4

Which of these is not a Rails feature?

Accepted Answer

Models

Answer

While Ruby on Rails applications are built on the Model-View-Controller (MVC) architectural pattern, 'Models' as a generic concept for representing data and business logic are not a feature exclusive to Rails. Rails specifically implements its model layer using the Active Record pattern, which is a distinct feature of the framework. Therefore, if the question implies a unique or specific feature of Rails, 'Models' in a general sense might be considered less specific than Active Record, Convention over Configuration, or Scaffolding.

Question 5

What is the file naming convention?

Accepted Answer

Underscores

Answer

Ruby on Rails follows specific naming conventions to maintain consistency and leverage 'convention over configuration.' For file names, especially for classes, modules, and views, the convention is to use `snake_case`, where words are separated by underscores. For example, a `UserProfile` model would be defined in `user_profile.rb`, and a `UsersController` would be in `users_controller.rb`.

Ruby on Rails Practice Test

Ruby on Rails Practice Test

Ruby on Rails Test 1