Job offersCompaniesTestsBlogI'm an employerSign upLog in
fr
fr
Home>IT Tests>Questions>Node.js

49 interview questions on Node.jsfor developers (2025)

Test your technical skills before an interview of Node.js with 49 corrected questions. Beginner, Intermediate or Expert level.

or
Technology
Profession
Test
Sort by
Newest
Most popular
Last review
Filter by
Published
3812
To review
37
49 questions
Expert
10 votes993 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 votes973 runs0 comment

Parse a query string into an object in NodeJS

Back-end developer
javascript
node.js
Jean-marie Cléryat May 11, 2022
Hard
4 votes1052 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
Medium
4 votes960 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
Hard
3 votes1008 runs0 comment

A simple SocketIO chat server, coupled with Express.

Back-end developer
socket.io
websockets
Jean-marie Cléryat May 11, 2022
Medium
3 votes985 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 votes977 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 votes968 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
Medium
2 votes1005 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 votes1005 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
Hard
2 votes1004 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
Easy
2 votes979 runs0 comment

Import a function from an ES2015 module in NodeJS

Back-end developer
modules
import
export
Jean-marie Cléryat May 11, 2022
Medium
2 votes922 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
Hard
1 vote1041 runs0 comment

What does a dependency marked as `^4.2.x` in the `package.json` mean?

Back-end developer
dependencies
semver
Jean-marie Cléryat May 11, 2022
Medium
1 vote1011 runs0 comment

Which of the following are Node templating engines?

Back-end developer
templating
Jean-marie Cléryat May 11, 2022
Hard
1 vote1007 runs0 comment

How to return an error and a result from an asynchronous function in NodeJS

Back-end developer
callback
error
Jean-marie Cléryat May 11, 2022
Medium
1 vote1002 runs0 comment

Create a web server with Express(v4) and listening on port 3000

Back-end developer
express
node
Jean-marie Cléryat May 11, 2022
Hard
1 vote991 runs0 comment

Fix the following code:

Back-end developer
callback
this
Jean-marie Cléryat May 11, 2022
Easy
1 vote989 runs1 comment

What is the advantage of using mongoose over MongoDB.MongoClient to deal with a MongoDB database?

Back-end developer
mongoose
mongodb
models
Jean-marie Cléryat May 11, 2022
Easy
1 vote984 runs0 comment

How to add the `async` module to our project?

Back-end developer
npm
modules
Jean-marie Cléryat May 11, 2022