Job offersCompaniesTestsBlogI'm an employerSign upLog in
fr
fr
Home>IT Tests>Questions>NodeJS

88 interview questions on NodeJSfor developers (2025)

Test your technical skills before an interview of NodeJS with 88 corrected questions. Beginner, Intermediate or Expert level.

or
Technology
Profession
Test
Sort by
Newest
Most popular
Last review
Filter by
Published
88
To review
0
88 questions
Medium
12 votes833 runs0 comment

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

Back-end developer
performance
gzip
Vincent Cotroat Nov 15, 2023
Expert
10 votes985 runs0 comment

How to define a global variable with Node.js?

Back-end developer
variables
node.js
Jean-marie Cléryat May 11, 2022
Medium
7 votes967 runs0 comment

Parse a query string into an object in NodeJS

Back-end developer
javascript
node.js
Jean-marie Cléryat May 11, 2022
Easy
4 votes1184 runs0 comment

How to start a NodeJS server

Back-end developer
node
server
Vincent Cotroat May 18, 2022
Medium
4 votes954 runs0 comment

Which of these 4 solutions for serving a very large file will be the most optimized in terms of _server resources_ and _loading speed for the client_?

Back-end developer
nodejs
file
server
Jean-marie Cléryat May 11, 2022
Easy
4 votes828 runs0 comment

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

Back-end developer
events
node.js
Axelat Sep 5, 2023
Easy
3 votes1285 runs0 comment

Install a NPM package via CLI

Back-end developer
cli
npm
Léoat Mar 28, 2022
Easy
3 votes1221 runs0 comment

In which request header is a token usually sent?

Back-end developer
headers
authorization
Léoat Mar 28, 2022
Easy
3 votes1200 runs0 comment

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

Back-end developer
databases
node.js
Léoat Mar 28, 2022
Easy
3 votes1195 runs0 comment

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

Back-end developer
classes
events
Léoat Mar 28, 2022
Easy
3 votes1191 runs0 comment

What is NPM?

Back-end developer
package manager
npm
Léoat Mar 28, 2022
Hard
3 votes1045 runs0 comment

How to get the result of 3 asynchronous functions in NodeJS

Back-end developer
promises
async
javascript
Jean-marie Cléryat May 11, 2022
Hard
3 votes1001 runs0 comment

A simple SocketIO chat server, coupled with Express.

Back-end developer
socket.io
websockets
Jean-marie Cléryat May 11, 2022
Medium
3 votes981 runs0 comment

Which of the following is the odd one out? : npm, yeoman, webpack, babel

Back-end developer
nodejs
yeoman
Jean-marie Cléryat May 11, 2022
Expert
3 votes971 runs0 comment

Write a generator function in NodeJS that yields the numbers from 0 to infinity.

Back-end developer
generators
yield
Jean-marie Cléryat May 11, 2022
Hard
3 votes962 runs0 comment

Write a NodeJS server that returns a different message depending on the route.

Back-end developer
http
server
Jean-marie Cléryat May 11, 2022
Easy
3 votes862 runs1 comment

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

Back-end developer
javascript
runtime
Dragon parfaitat Jun 8, 2023
Medium
2 votes997 runs0 comment

What will the `result` variable contain at the end of this code?

Back-end developer
promises
async/await
Jean-marie Cléryat May 11, 2022
Hard
2 votes994 runs1 comment

Write a NodeJS program that logs the contents of a file.

Back-end developer
error handling
file system
Jean-marie Cléryat May 11, 2022
Medium
2 votes917 runs1 comment

Write a NodeJS program that fetches 3 movies from an API and logs their id and title.

Back-end developer
promises
async
generator
Jean-marie Cléryat May 11, 2022
NodeJS tests