Node.js API Development Masterclass

1

What is Node.js built on?

Python interpreter V8 JavaScript engine JVM Ruby runtime

2

Which module is used to create an HTTP server in Node.js?

fs path http url

3

What is npm?

Node Package Manager New Programming Method Network Protocol Module Node Process Monitor

4

What does Express.js provide?

Database ORM Web application framework Testing library Build tool

5

How does Node.js handle concurrent requests?

Multi-threading Event loop with non-blocking I/O Process forking only Synchronous processing

6

What is middleware in Express?

Database connector Functions that execute during request-response cycle A template engine A CSS preprocessor

7

Which method reads a file asynchronously in Node.js?

fs.readFileSync fs.readFile fs.openSync fs.createWriteStream

8

What is package.json used for?

Storing user data Project metadata and dependency management Server configuration Database schema

9

What is the purpose of the "require" function?

Export modules Import modules Create new files Start the server

10

What is a callback in Node.js?

A function passed as argument to be executed later A type of variable A built-in module A debugging tool