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

88 interview questions on NodeJSfor developers (2026)

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
15 votes940 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 votes1009 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 votes997 runs0 comment

Parse a query string into an object in NodeJS

Back-end developer
javascript
node.js
Jean-marie Cléryat May 11, 2022
Easy
5 votes925 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
4 votes1384 runs0 comment

Install a NPM package via CLI

Back-end developer
cli
npm
Anonymous authorat Mar 28, 2022
Easy
4 votes1320 runs0 comment

In which request header is a token usually sent?

Back-end developer
headers
authorization
Anonymous authorat Mar 28, 2022
Easy
4 votes1287 runs0 comment

How to start a NodeJS server

Back-end developer
node
server
Vincent Cotroat May 18, 2022
Hard
4 votes1076 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
4 votes1024 runs0 comment

Given a tree structure and Express middlewares, which file will be returned when calling the `tutorial.mp4` resource?

Back-end developer
express
static
Jean-marie Cléryat May 11, 2022
Medium
4 votes985 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
3 votes1298 runs0 comment

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

Back-end developer
databases
node.js
Anonymous authorat Mar 28, 2022
Easy
3 votes1291 runs0 comment

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

Back-end developer
classes
events
Anonymous authorat Mar 28, 2022
Easy
3 votes1287 runs0 comment

What is NPM?

Back-end developer
package manager
npm
Anonymous authorat Mar 28, 2022
Hard
3 votes1028 runs0 comment

A simple SocketIO chat server, coupled with Express.

Back-end developer
socket.io
websockets
Jean-marie Cléryat May 11, 2022
Medium
3 votes1007 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 votes1001 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 votes990 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 votes958 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 votes1383 runs0 comment

Start a REPL session on Node.js

Back-end developer
repl
node
Anonymous authorat Mar 28, 2022
Medium
2 votes1024 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
NodeJS tests