Free NestJS Basic Question and Answers — Questions and Answers

Question 1: What framework help JS developers manage code more efficiently?

Angular (Correct answer)
React
Vue
None of the above

Correct answer: Angular

Angular is a comprehensive front-end framework that provides a highly structured and opinionated approach to building complex web applications. Its component-based architecture, strong typing with TypeScript, and extensive tooling help JavaScript developers manage large codebases more efficiently. This structured environment promotes maintainability and scalability, making code management easier.

Question 2: What does Passport.js do?

Authentication (Correct answer)
Encryption
Storage
Cryptography

Correct answer: Authentication

Passport.js is a popular and flexible authentication middleware for Node.js. It provides a modular framework for adding various authentication strategies, such as local username/password, OAuth, and JWT, to web applications. Its primary function is to handle user authentication and session management, making it easier to secure applications.

Question 3: What does a website's back end include?

Data (Correct answer)
Programming
Design
Code

Correct answer: Data

The backend of a website encompasses the server-side logic, databases, and application programming interfaces (APIs) that power the application. Its core responsibility is to store, organize, and process data, which is then delivered to the frontend for display and user interaction. Therefore, 'data' is a fundamental component of a website's backend.

Question 4: What does Nest.JS provide for developers to get started?

Module, controller, and a testing pile
Module, controller, service and a testing pile (Correct answer)
Service, module, and controller
Module, service and a controller pile

Correct answer: Module, controller, service and a testing pile

NestJS provides a clear and structured starting point for developers, typically including fundamental building blocks like modules, controllers, and services. These components form the core of its architectural pattern. Additionally, NestJS integrates well with testing frameworks and often includes a basic testing setup ('testing pile') out of the box, encouraging robust development practices from the start.

Question 5: What type of experience does it take to use the Nest framework?

Mobile development
Full stack development
Back-end development
Front-end development (Correct answer)

Correct answer: Front-end development

While NestJS is a backend framework, its architecture and design principles are heavily inspired by Angular, a prominent front-end framework. Developers with experience in front-end development, especially with Angular, will find NestJS's use of decorators, dependency injection, and modular structure very familiar. This makes the transition to backend development with NestJS smoother for those with a front-end background.

Question 6: What is an extension to the popular AngularJS framework?

VueJS
NestJS cors (Correct answer)
ReactJS
None of the above

Correct answer: NestJS cors

This question contains a slight inaccuracy as NestJS is a backend framework inspired by Angular (the successor to AngularJS), not an extension of AngularJS itself. However, 'NestJS cors' refers to the module used within NestJS to handle Cross-Origin Resource Sharing. While not an 'extension to AngularJS', it is a common module used in NestJS applications, which draws architectural inspiration from the Angular ecosystem.

Question 7: What does NestJS support?

GraphQL and WebSockets (Correct answer)
AngularJS and TypeScript
Angular and HTTP/2
React and Redux

Correct answer: GraphQL and WebSockets

NestJS offers excellent out-of-the-box support for building APIs using GraphQL, providing dedicated modules and decorators that simplify its integration. Furthermore, it includes robust capabilities for real-time communication through WebSockets, enabling developers to create interactive and dynamic applications. These features make NestJS a versatile choice for modern web development.

Free NestJS Basic Question and Answers

What framework help JS developers manage code more efficiently?