39 interview questions on Node.js - Fundamentals for developers (2025)

9 votes702 runs0 comment

4 votes1064 runs0 comment

3 votes1087 runs0 comment

Léoat Mar 28, 2022

3 votes714 runs0 comment

Axelat Sep 5, 2023

2 votes1162 runs0 comment

Léoat Mar 28, 2022

2 votes1090 runs0 comment

Léoat Mar 28, 2022

2 votes750 runs1 comment

1 vote1154 runs0 comment

Léoat Mar 28, 2022

1 vote1119 runs0 comment

package manager

Léoat Mar 28, 2022

1 vote1112 runs0 comment

authorization

Léoat Mar 28, 2022

1 vote1083 runs0 comment

package manager

Léoat Mar 28, 2022

1 vote1082 runs0 comment

Léoat Mar 28, 2022

1 vote549 runs0 comment

Léoat Mar 28, 2022

1 vote517 runs0 comment

1 vote429 runs0 comment

Léoat Mar 28, 2022

1 vote423 runs0 comment

Léoat Mar 28, 2022

0 vote1095 runs0 comment

Léoat Mar 28, 2022

0 vote780 runs0 comment

Léoat Mar 28, 2022

0 vote729 runs0 comment

Axelat Sep 5, 2023

0 vote460 runs1 comment

Léoat Mar 28, 2022

39 interview questions on Node.js - Fundamentalsfor developers (2025)

Test your technical skills before an interview of Node.js - Fundamentals with 39 corrected questions. Beginner, Intermediate or Expert level.

39 interview questions on Node.js - Fundamentalsfor developers (2025)

Test your technical skills before an interview of Node.js - Fundamentals with 39 corrected questions. Beginner, Intermediate or Expert level.

What is the best practice to apply in your code to improve the performance of your application?

How to start a NodeJS server

Which class is used to create custom events in Node.js?

Write a Node.js code that emits an event and logs it to the console.

Install a NPM package via CLI

What types of databases can a node.js application access?

Node.js is a Javascript execution "runtime" based on V8 engine

Start a REPL session on Node.js

What does npm mean?

In which request header is a token usually sent?

What is NPM?

What is the name of the JavaScript API that allows you to manipulate the content of a page?

Display the operating system platform in NodeJS

When creating an HTTP server with Node, we use the **createServer()** function. We can pass a function to **createServer()** that will react to incoming requests. What arguments does this function receive?

Which of the following is not a valid HTTP method?

Is it generally acceptable to store unencrypted passwords in a database if that database requires an access password?

When can a CORS error occur?

How to see the different commands of npm?

What does the `npm init` command do?

How to check the version of Node.js installed?

When creating an HTTP server with Node, we use the createServer() function. We can pass a function to createServer() that will react to incoming requests. What arguments does this function receive?