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Node.js Online Test

The NodeJS Online Test uses scenario-based MCQ questions to evaluate a candidate's ability to use Express.js as web application framework, handle REST API in Node, structure the Node application in modules, use NPM packages, connect to SQL/ Mongo databases and deploy node apps to production. The test uses code-tracing MCQ questions and coding questions to evaluate hands-on JavaScript programming skills.

Customized Based On:

  • Experience/ difficulty level
  • Multiple skills in 1 assessment
  • Job description/ role requirements

Covered Topics:

Node.js Module System
File System and Command Line Args
Debugging Node.js
Asynchronous Node.js and promises
REST APIs and web servers
API Authentication and Security
Testing and releasing Node.js
NPM package system
Node Middlewares
Event Loop and Timers
In-depth express js framework
See full list
Singapore government logo

The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.


Human Resources Manager

Singapore Government

85%
reduction in screening time

Sample Node.js Online Test Questions

These are just a small sample from our library of 10,000+ questions. The actual questions on this Node.js Online Test will be non-googleable.

🧐 Question🔧 Skill💪 Difficulty⌛ Time
Async Await Promises
What will the following code output?
 image
A: 24 after 5 seconds and after another 5 seconds, another 24
B: 24 followed by another 24 immediately
C: 24 immediately and another 24 after 5 seconds
D: After 5 seconds, 24 and 24
E: Undefined
F: NaN
G: None of these

Options:

  • A
  • B
  • C
  • D
  • E
  • F
  • G
Promises Async-Await
JavaScriptMedium2 min
Prototypes and Scope
What will the following code output?
 image

Options:

  • b0e1 5e b0e1 undefined
  • undefined 5e kj18
  • b0e1 5e kj18
  • b0e1 5e b0e1
Prototypes
JavaScriptMedium2 min
Res methods
If none of the methods (res.download, res.end, res.json, res.jsonp, res.redirect, res.render, res.send, res.sendFile, res.sendStatus) are called from a route handler to terminate request response cycle, what happens to the the client request?

A) Will be left hanging indefinitely

B) Will get an internal server error - 500

C) Will get a service unavailable error - 503

D) Will be left hanging for a while and then request timeout error - 408

Options:

  • A
  • B
  • C
  • D
NodeJSMedium3 min
Promise Resolve
What does the following code output?
 image

Options:

  • A, B and A, B
  • B, A and B, A
  • A, B and B, A
  • B, A and A, B
Promises Async-Await
JavaScriptEasy2 min
Throw, Try, Async
What does the following JS code output?
 image

Options:

  • Data
  • Error
  • Finale
  • Data Finale
  • Error Finale
Promises Async-Await
JavaScriptEasy2 min

How to use the Adaface Node.js Online Test

Start screening candidates within minutes with the ready-to-go Node.js Online Test

1. Choose the most appropriate test for your role

2. Start inviting candidates to complete the assessment

3. Receive real time notifications and shortlist the best candidates

Customize the Adaface Node.js Online Test according to your job description

1. Get a custom assessment from our library of 500+ skills within 48 hours

2. Start inviting candidates to complete the assesment

3. Receive real time notifications and shortlist the best candidates

Adaface Node.js Online Test is trusted by enterprises worldwide

amazon
PayPal
Morgan Stanley
Adidas
SG Government
Neilsen
UCLA
Ernst and Young
Microsoft
WeWork
Bosch
Optimum Solutions
SAP
Doubtnut
Deloitte
HCL
FusionCharts
United Nations
Sokrati
Love Bonito
ZiMetrics
MTM

About the Adaface Node.js Assessment Test

Evaluate NodeJS technical and coding skills with Adaface skills assessment platform powered by an intelligent chatbot

Topics:

JavaScript fundamentals
NodeJS under-the-hood
ExpressJS fundamentals
Request Response
Routing & Controller Methods
Handle HTTP requests
Middlewares
NPM
ES6
Event Emitter
Buffers
Streams
Pipes
CRONs
Express
Serving static files
JSON and XML
CORS
Websockets
Templating engines (Handlebars)
Session management
In-memory cache
Connecting to databases (SQL, Mongoose)
Asynchronous programming (Async/ Await)
Promises
Singletons
Authorization and authentication
Worker threads
Clustering
API security

Recommended Roles:

Node JS Developer
Senior Node JS Developer
Backend Node Developer
Senior Backend Node.JS Developer
Express.js Developer

Why you should use this Node online test?

NodeJS/ JavaScript online test is designed and validated by industry experts to help tech recruiters and hiring managers assess the NodeJS and JavaScript programming skills of the candidate. The test screens candidates for the following common Node JS skills hiring managers look for:

  • JavaScript fundamentals (ES6 and OOPs)
  • Asynchronous programming and Promises
  • Request-Response lifecycle and status codes
  • Building Web servers and API servers using Express JS
  • JSON parsing and serving
  • Structure a Node application in modules
  • Understanding of Node Event loop and Event emitter
  • Understanding of Buffers, Streams, and Pipes
  • Managing node packages
  • Connecting to SQL or Mongo database in Node
  • Working with files and serving static files
  • Custom routes
  • Efficient use of common middlewares
  • Knowledge of Template Engines like Handlebars
  • Building, testing and releasing Node apps
  • Error and exception handling
  • In-depth understanding of Node event loop

The test also has code-tracing MCQ questions and coding questions to evaluate hands-on JavaScript programming skills.

How is the test customized for Senior Node Developers?

The questions for Senior Node Developers will be of a higher difficulty level and are based on advanced topics like:

  • Session and Cookie management
  • Using Webpack
  • Differences between development and production environment
  • Efficient in-memory data management
  • Websockets in Node
  • Designing a secure authentication system in Node
  • Writing custom middlewares
  • Custom Error Handling
  • Scaling node process (forks)
  • Improving server performance with Worker Threads and Clustering
  • Caching query requests for improving speed
  • Unit and integration tests
  • Handling Node servers behind proxy applications
  • Semantic version and dependency management
  • Custom NPM scripts
  • API Security (NoSQL injection, XSS protection, Rate Limiting)
  • API Documentation & Deployment
  • Deployment With PM2, NGINX, SSL
  • Using Nginx as a reverse proxy and load balancer
  • Handling CORS

Additionally, the MCQs and coding question to evaluate JavaScript skills will be of higher difficulty levels.

Distribution Of Test Scores

The actual score distribution will vary based on your candidate pipeline quality, but you should typically expect ~20% of the candidates to do well on Adaface assessments.

The score distribution for our assessments follow the normal curve. This is a good sign- standardized tests like SAT and GRE follow the normal distribution (bell curve).

Status quo assessments typically have the exact opposite of the bell curve (too many candidates getting close to 0, too many candidates getting close to 100 and too few candidates in the middle). This is typically because they focus on theoretical questions or trick questions, which are very binary in nature- either you know the trick/ theory or you don’t.

How Adaface Is Different

Adaface conversational assessments are reflective of on-the-job skills and see an 86% completion rate as compared to ~50% for traditional assessment platforms.

OLD WAY

TRADITIONAL TESTS

Theoretical questions/ puzzles

Feels like a test

One-size-fits-all assessments

😞
HIRE IN
Weeks/Months

NEW WAY

ADAFACE ASSESSMENTS

Questions for on-the-job skills

Conversational

Customized
assessments

😀️
HIRE IN
Days

Node.js Online Test FAQs

Can I use this for evaluating TypeScript and NodeJS skills?

Yes. We can customize the assessment for TypeScript Node developers. You can check our standard TypeScript test to get a sense of what questions will be used to evaluate TypeScript skills. The final assessment will have MCQ questions to evaluate TypeScript, NodeJS and coding questions to evaluate hands-on JavaScript programming skills.

What is a custom assessment?

Every role is different and requires a custom assessment to identify top candidates efficiently. Adaface subject matter experts understand your job description/ role requirements and pick the most relevant questions from our library of 10000+ questions to create a technical assessment that helps you find the qualified candidates in your candidate pipeline quickly. All custom assessments are set up based on the job description, role requirements, must-have skills, experience level and salary range within a maximum of 48 hours and you will get an email notification once it goes live.

Check out a sample assessment here (no credit card required).

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify.

How is Adaface different from other assessment tools?

We believe that status quo tech assessment platforms are not a fair way for companies to evaluate engineers because they focus on trick questions/ puzzles/ niche algorithms. We started Adaface to help companies find great engineers by assessing on-the-job skills required for a role. Read more about why we started Adaface.

Here's what's different with Adaface:

  • High quality non-googleable questions that test for on-the-job skills as opposed to theoretical knowledge.
  • A friendly conversational assessment with a chatbot, instead of sending a "test" to a candidate. This translates to a higher completion rate. Adaface assessments (86% candidate completion rate), as opposed to traditional tests (40-50% candidate completion rate)
  • Customized assessments for 700+ skills at different experience levels.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Web proctoring
  • Webcam proctoring
  • Plagairism detection
  • Non-googleable questions
  • Secure browser

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

The platform is completely self-serve, so here's one way to proceed:

  • You can sign up for free to get a feel for how it works.
  • The free trial includes one sample assessment (Java/ JavaScript) that you will find in your dashboard when you sign up. You can use it to review the quality of questions, and the candidate experience of a conversational test on Adaface.
  • To review the quality of questions, you can also review our public questions for 50+ skills here.
  • Once you're convinced that you want to try it out with real assessments and candidates, you can pick a plan according to your requirements.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!


Brandon Lee, Head of People, Love, Bonito

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