web 3 nodeJS

What is Node.js primarily used for?

• Running JavaScript on the server side
• Creating desktop GUIs
• Styling web pages
• Building mobile applications

Which engine powers Node.js?

• V8
• SpiderMonkey
• Chakra
• JavaScriptCore

What is the file extension of a Node.js file?

• .js
• .txt
• .node
• .json

How do you import the built-in 'http' module in Node.js?

• import http from 'http'
• include('http')
• require('http')
• use('http')

What is 'npm'?

• Node Package Manager
• Node Programming Manager
• Node Prebuilt Modules
• Network Package Manager

Which of these is a popular web framework for Node.js?

• Express
• Spring
• Flask
• Laravel

What is the purpose of 'package.json'?

• To list all the JavaScript files
• To store the Node.js binary
• To configure environment variables
• To define metadata and dependencies of the project

How do you install a package globally using npm?

• npm load [package-name]
• npm get [package-name]
• npm install -g [package-name]
• npm global add [package-name]

What is the purpose of the 'require' function in Node.js?

• To declare variables
• To import external modules
• To run test cases
• To open database connections

What is the default scope of variables declared with 'var' in Node.js?

• Global-scoped
• Function-scoped
• Block-scoped
• Module-scoped