Node.js Development Skill Assessment

Written by Coursera • Updated on

Test your Node.js skills with this quick assessment. Answer 10 multiple-choice questions to get your score, then check the Scoring Guide to find your level and recommended learning path.

Nodejs Skill Assessment

Node.js Programming Quiz

1. What is the Event Loop in Node.js?

A UI component
A mechanism that allows Node.js to perform non-blocking operations
A testing framework
A database query loop

2. What's the difference between process.nextTick() and setImmediate()?

They are the same
process.nextTick() runs before I/O events, setImmediate() runs after
setImmediate() is faster
process.nextTick() is deprecated

3. How do you handle errors in async/await?

async function getData() {
  // What's the best practice?
}
Use callbacks
Use try/catch blocks
Ignore them
Use events

4. What is middleware in Express.js?

A database connector
Functions that have access to request, response objects, and the next function
A routing mechanism
A testing tool

5. What is the purpose of the cluster module?

To group code
To run multiple instances of Node.js to handle load
To organize files
To connect to clusters of databases

6. What is the difference between exports and module.exports?

No difference
module.exports allows exporting a single object, exports is a reference to it
exports is newer
module.exports is deprecated

7. How do Streams work in Node.js?

They are for video streaming only
They handle data in chunks rather than loading entirely in memory
They are deprecated
They are for testing only

8. What is the purpose of the Buffer class?

To cache data
To handle binary data and work with streams
To buffer network requests
To create arrays

9. What's the difference between require and import?

No difference
import is ES modules, require is CommonJS
require is faster
import is deprecated

10. What is the purpose of the worker_threads module?

For UI threading
To run CPU-intensive tasks in parallel
For network threading
It's deprecated

Scoring Guide & Course Recommendations

0-30: Beginner Level

40-70: Intermediate Level

80-100: Advanced Level

Skills Covered by Level

Beginner Level

  • Node.js basics

  • NPM basics

  • Asynchronous programming

  • Basic Express.js

  • File system operations

  • Basic error handling

Intermediate Level

  • Express.js middleware

  • Authentication

  • Database integration

  • RESTful APIs

  • Testing

  • Performance basics

Advanced Level

  • Microservices

  • Real-time applications

  • Performance optimization

  • Security

  • DevOps integration

  • Architecture patterns

Career Paths

  • Beginner Level: Junior Node.js Developer, Backend Developer Trainee, Full Stack Developer Intern

  • Intermediate Level: Node.js Developer, Backend Developer, Full Stack Developer

  • Advanced Level: Senior Node.js Developer, Backend Architect, Technical Lead

Key Technologies to Learn

  • Node.js

  • Express.js

  • MongoDB/PostgreSQL

  • Redis

  • Docker

  • REST/GraphQL

Updated on
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Coursera

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