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What is the purpose of the
npm installcommand in Node.js?- A) To initialize a new Node.js project
- B) To install dependencies for a Node.js project
- C) To start a new Node.js server
- D) To uninstall Node.js from the system
Answer: B) To install dependencies for a Node.js project
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Which of the following is a popular Node.js framework for building real-time web applications?
- A) Express.js
- B) Meteor.js
- C) Django
- D) Flask
Answer: B) Meteor.js
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What is the purpose of the
module.exportsobject in Node.js?- A) To import modules
- B) To create an HTTP server
- C) To export variables, functions, or classes from a module
- D) To handle database operations
Answer: C) To export variables, functions, or classes from a module
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Which of the following is a core module in Node.js for handling file operations?
- A) fs
- B) http
- C) os
- D) path
Answer: A) fs
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What is the purpose of the
npm startcommand in Node.js?- A) To install Node.js on your system
- B) To initialize a new Node.js project
- C) To start a Node.js server defined in the
package.jsonfile - D) To update all dependencies in a Node.js project
Answer: C) To start a Node.js server defined in the
package.jsonfile -
What is the purpose of the
Bufferclass in Node.js?- A) To manipulate binary data
- B) To handle HTTP requests
- C) To interact with the file system
- D) To create web servers
Answer: A) To manipulate binary data
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Which of the following is NOT a valid HTTP method in Node.js?
- A) PUT
- B) GET
- C) POST
- D) FETCH
Answer: D) FETCH
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What is the purpose of the
processobject in Node.js?- A) To manage child processes
- B) To provide information about the current Node.js process
- C) To handle HTTP requests
- D) To interact with the file system
Answer: B) To provide information about the current Node.js process
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Which of the following is NOT true about the event-driven architecture in Node.js?
- A) It allows for non-blocking, asynchronous I/O operations
- B) It uses event emitters to handle events
- C) It relies on a multi-threaded model for concurrency
- D) It provides high scalability and performance
Answer: C) It relies on a multi-threaded model for concurrency
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What is the purpose of the
setTimeout()function in Node.js?- A) To pause the execution of the current thread for a specified amount of time
- B) To schedule a callback function to be executed after a specified delay
- C) To terminate the Node.js process
- D) To set a timeout for HTTP requests
Answer: B) To schedule a callback function to be executed after a specified delay
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