Post by account_disabled on Mar 11, 2024 0:32:15 GMT -6
Ask senior candidates some of these 50 advanced Node.js interview questions to check their competency and skills. Could you tell us what REPL means and what it represents? Please explain how the control flow function works. Could you explain what the fork method is ? Please tell us what is the spawn method . Can you explain the difference between fork and spawn ? What do you know about the Buffer class ? Please explain what the concept of "piping" refers to in Node.js. Do you understand what "callback hell" means? Provide a definition. Can you explain what reactor patterns are in Node.js? What do you know about testing pyramids in Node.js? Do you know the function of exit codes in Node.js? Could you tell us what middleware is? Can you name some examples of HTTP requests? Do you have a method to connect Node.js to a MongoDB database? What do you know about node_env ? Please tell us about the core synchronization features of Node.js. Do you know what WASI is? Can you explain why it is important? What do you know about first class functions in JavaScript? Do you have a method to manage packages in a Node.js project? What do module exports do in Node.
Do you use any tools to ensure code style consistency? In what order does the event loop execute control flow statements? Why would you use event-driven models in Node.js? How is Node.js different from Ajax? Please explain if Node.js runs on Windows. Is it possible for developers to access the DOM in Node.js? Explain why yes or why no. Why do you think some Java programmers prefer Node.js? Can you explain what "non-blocking blocking" means in Node.js? Is it important to separate the server and the Express application? Explain why yes or why no. What do you understand by stubs in Node.js? What is Brazil Phone Number Data the most popular framework that developers use with Node.js? Name two security implementations that exist in Node.js. Do you know what libuv is? Can you explain what it does in Node.js? Briefly describe global objects in Node.js. In what situation should developers use assert in Node.js? Explain what the Connect module does. What do you know about LTS versions in Node.js? Does Node.js have a method to handle child threads? Explain your answer. Can developers use clustering to improve Node.js performance? Explains how. Explain what a thread pool is.
Is there a difference between worker threads and clusters? Explain your answer. Do you have any method to measure the duration of an asynchronous operation? What do you know about tracing in Node.js? Please let us know if Node.js supports encryption. Can you explain if Node.js has a debugging tool? Could you explain what Punycode is in the context of Node.js? Can you tell us how the Node.js DNS lookup feature works? Please explain what the fs.stat method does in Node.js. Could you explain what Passport is and what it does in Node.js? What do you know about the crypto module in Node.js? 5 Advanced Node.js Interview Questions with Sample Answers Here are sample answers to five important advanced Node.js questions. Compare your candidates' responses to these answers to assess their competency. 1. How is Node.js different from Ajax? Node.js is a different technology than Ajax, and each one serves a different purpose. Developers use client-side Ajax technology to complete asynchronous communication between the server and the client. They also use this tool to avoid initiating a full page reload when refreshing parts of a web page. On the other hand, Node.js is a very popular runtime environment for creating real-time applications: this server environment is commonly used by many companies.