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Node.js Mastery: Building Scalable and Efficient Backend Applications

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💡 questionsBank.answeredQuestions

1.What is the primary benefit of using Node.js for backend development?
  • 1.It uses Python for all operations.
  • 2.It has a wide range of frameworks like Laravel.
  • 3.It easily integrates with front-end frameworks.
  • 4.It handles multiple concurrent connections efficiently using non-blocking I/O. ✓
2.Which of the following modules in Node.js is primarily used for handling file operations?
  • 1.http
  • 2.events
  • 3.fs ✓
  • 4.url
3.Node.js is built on which Javascript engine?
  • 1.SpiderMonkey
  • 2.JavaScriptCore
  • 3.Chakra
  • 4.V8 ✓
4.What command is used to install a package globally in Node.js?
  • 1.npm install [package-name]
  • 2.node install -g [package-name]
  • 3.npm install -p [package-name]
  • 4.npm install -g [package-name] ✓
5.Which of the following is used to write asynchronous code in Node.js more manageably?
  • 1.Promises ✓
  • 2.Callbacks exclusively
  • 3.Events
  • 4.Synchronism
6.Which method is used to create a server in Node.js?
  • 1.createSocket
  • 2.listen
  • 3.createServer ✓
  • 4.connect
7.Which of these is an event-driven framework used with Node.js to facilitate asynchronous programming?
  • 1.Express
  • 2.Hapi
  • 3.Async.js ✓
  • 4.Socket.io
8.How does Node.js achieve high throughput?
  • 1.By compiling code ahead of time.
  • 2.Using multi-threading naturally.
  • 3.By using a single-threaded event loop to manage multiple I/O operations asynchronously. ✓
  • 4.By forcing synchronous execution of functions.
9.Which module would you use in Node.js to create a web server?
  • 1.http ✓
  • 2.websocket
  • 3.tcp
  • 4.dns
10.What is the purpose of 'npm shrinkwrap'?
  • 1.To shrink the size of node_modules.
  • 2.To cache commonly used modules.
  • 3.To bundle project files for deployment.
  • 4.To lock down the versions of a project's node dependencies. ✓
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