Free NestJS Introduction Question and Answers — Questions and Answers
Question 1: What is included in the comparison because it works at a lower layer than Loopback?
- Node.js
- Apache httpd
- AngularJS
- ExpressJS (Correct answer)
Correct answer: ExpressJS
ExpressJS is a minimalist and flexible Node.js web application framework that operates at a relatively low level, providing core routing and middleware functionalities. LoopBack, on the other hand, is a more opinionated framework built on top of Express, offering higher-level abstractions for API development. Therefore, ExpressJS is often included in comparisons because it represents the foundational layer beneath frameworks like LoopBack.
Question 2: What are the capabilities of a module described as?
- A module that provides a wide range of capabilities
- A module with a specific set of capabilities
- A collection of closely related capabilities (Correct answer)
- A collection of services that can be accessed by software applications
Correct answer: A collection of closely related capabilities
In NestJS, a module is a fundamental organizational unit that encapsulates a collection of closely related capabilities. This includes components like controllers, providers, and other modules, all working together to achieve a specific feature or domain. This structure promotes clear separation of concerns, reusability, and maintainability within the application.
Question 3: What is the framework entirely in?
- Angular
- React
- TypeScript (Correct answer)
- HTML
Correct answer: TypeScript
NestJS is built entirely with and heavily leverages TypeScript. This choice provides strong typing, which enhances code quality, maintainability, and developer tooling, especially for large-scale applications. TypeScript's features are integral to NestJS's architecture, enabling a more robust and predictable development experience.
Question 4: What is the name of the framework that helps build Node. JS server-side applications?
- React
- Nest (Correct answer)
- Backbone
- Express
Correct answer: Nest
NestJS is a progressive Node.js framework specifically designed to build efficient, scalable, and reliable server-side applications. It adopts a structured approach, drawing inspiration from Angular's architecture, and combines elements of object-oriented programming, functional programming, and reactive programming to streamline backend development.
Question 5: What does JS divide files into?
- Lines
- Directories
- Files
- Modules (Correct answer)
Correct answer: Modules
Modern JavaScript (JS) development heavily relies on the concept of modules to organize code. Modules allow developers to divide their application into separate, self-contained files, each exporting and importing specific functionalities. This approach promotes better code organization, reusability, and efficient dependency management.
Question 6: What does Nest.JS deal with?
- Audio and video compression
- Authentication and authorization
- Cryptography
- Data storage and data management (Correct answer)
Correct answer: Data storage and data management
As a backend framework, NestJS is fundamentally involved in handling data for server-side applications. It facilitates interactions with databases for persistent data storage and provides mechanisms for managing data flow, validation, and transformation. Therefore, data storage and data management are core responsibilities that NestJS helps developers address.
Question 7: Which framework developers create feature-rich, visually appealing applications and websites?
- Full stack frameworks
- Hybrid frameworks
- Front-end frameworks (Correct answer)
- Back-end frameworks
Correct answer: Front-end frameworks
Front-end frameworks, such as Angular, React, and Vue, are specifically designed to build the user interface (UI) and user experience (UX) of applications and websites. They provide tools and structures that enable developers to create interactive, visually appealing, and feature-rich client-side experiences that users directly interact with in their browsers.
Free NestJS Introduction Question and Answers
What is included in the comparison because it works at a lower layer than Loopback?