Learn Node Js MCQs
Prepare Node Js MCQs (Multiple choice Questions) for exam and job interviews.
How do you use the `process` module to manage application execution?
1) By handling signals and process events
2) By managing HTTP requests
3) By working with file systems
4) By handling streams
Answer : Option 1
What is the `app.get()` method used for in Express.js?
1) To define GET routes
2) To handle middleware
3) To start the server
4) To manage sessions
Answer : Option 1
How do you ensure that a Node.js application is production-ready?
1) By implementing error handling, logging, and performance optimizations
2) By using only development dependencies
3) By disabling error handling
4) By limiting features
Answer : Option 1
What is the role of the `events` module in Node.js?
1) To handle asynchronous events and listeners
2) To manage HTTP requests
3) To work with file systems
4) To parse URLs
Answer : Option 1
How do you use the `express-session` module?
1) To manage user sessions in Express applications
2) To handle file uploads
3) To parse JSON data
4) To manage HTTP requests
Answer : Option 1
What does the `fs.copyFile()` method do?
1) Copies a file
2) Deletes a file
3) Renames a file
4) Reads a file
Answer : Option 1
How do you handle errors in a Node.js application?
1) By using try/catch blocks, error events, or middleware
2) By ignoring errors
3) By using custom error logging
4) By terminating the application
Answer : Option 1
What is the purpose of the `module.exports` object in Node.js?
1) To export functions, objects, or values from a module
2) To handle HTTP requests
3) To manage file systems
4) To parse URLs
Answer : Option 1
How do you use the `querystring` module in Node.js?
1) To parse and format URL query strings
2) To handle HTTP requests
3) To work with file systems
4) To manage streams
Answer : Option 1
What does the `os.platform()` method return?
1) The operating system platform
2) The system architecture
3) The CPU model
4) The memory usage
Answer : Option 1