ROR Developer Interview Questions and Answers

DBMS is a software that manages databases, OS is the operating system. HTML is a markup language, HTML5 is the latest version with new features.

• DBMS (Database Management System) is software that manages databases, like MySQL or Oracle.

• OS (Operating System) is the software that manages computer hardware and software resources, like Windows or Linux.

• HTML (Hypertext Markup Language) is used to create web pages, while HTML5 is the latest version with new features like video and a...read more

MVC is a software architectural pattern that separates an application into three main components: Model, View, and Controller.

• Model represents the data and business logic of the application.

• View is responsible for displaying the data to the user.

• Controller handles user input, updates the model, and interacts with the view.

• MVC promotes separation of concerns and modularity.

• Example: In a RoR application, the model could be a database table, the view could be an HTML template, a...read more

Strong params is a security feature in Ruby on Rails that allows you to specify which parameters are allowed for mass assignment.

• Strong params helps prevent mass assignment vulnerabilities by whitelisting specific parameters.

• It is used to protect against malicious users attempting to modify sensitive data.

• Strong params is implemented using the 'permit' method in Rails controllers.

• Example: params.require(:model_name).permit(:attribute1, :attribute2)

Active Record is an object-relational mapping (ORM) pattern in Ruby on Rails that simplifies database interactions.

• ORM pattern in Ruby on Rails

• Maps database tables to Ruby objects

• Provides methods for querying and manipulating data

• Example: User model in Rails represents users table in database