Related Topics Node JS Question 6 What is the role of clustering in improving performance of Node.js applications? Answer Clustering is a technique used in Node.js to improve the performance of applications by utilizing multiple CPU cores. In a typical Node.js application, only a single instance of the Node.js process runs on a single CPU …
Related Topics Node JS Question 1 What techniques do you use to improve the performance of a Node.js application? Answer There are several techniques that can be used to improve the performance of a Node.js application: Minimize I/O Operations: I/O operations can be expensive and can slow down an application. One way to minimize I/O …
Related Topics Node JS Question 9 How do you approach testing and debugging Node.js applications? Answer To approach testing and debugging Node.js applications, I typically follow the following steps: Writing Unit Tests: I start by writing unit tests for individual functions and modules to ensure that they work as expected. Integration Testing: After unit testing, …
Related Topics Node JS Question 1 Can you describe your experience with Node.js and its applications? Answer Node.js is a popular runtime environment built on top of the Google V8 JavaScript engine that allows developers to run JavaScript on the server-side. Node.js provides an event-driven, non-blocking I/O model that makes it well-suited for building scalable, …
Related Topics Node JS Question 6 How can you ensure the security of your Node.js application in production? Answer There are several steps that can be taken to ensure the security of a Node.js application in production: Keep dependencies up-to-date: One of the most important things you can do to ensure the security of your …
Related Topics Node JS Question 1 What are some of the common challenges when deploying Node.js applications in production? Answer There are several common challenges when deploying Node.js applications in production, including: Scalability: Node.js applications can handle a large number of requests, but scaling them to handle even more can be a challenge. This can …
Related Topics Node JS Question 1 What is your experience with testing Node.js applications, and what tools have you used for this purpose? Answer There are several testing tools and frameworks available for testing Node.js applications, including Jest, Mocha, and Jasmine. These tools provide a range of features such as assertions, mocking, and test runners. …
Related Topics Node JS Question 6 Can you give an example of how to implement authentication and authorization in a RESTful API built with Node.js and Express.js? Answer Here’s an example of how to implement authentication and authorization in a RESTful API built with Node.js and Express.js: First, we need to set up authentication using …
Related Topics Node JS Question 1 What is a RESTful API and what are the key principles it follows? Answer A RESTful API (Representational State Transfer) is a set of guidelines and principles for creating web services that are scalable, flexible, and easily maintainable. It is an architectural style that defines a set of constraints …
Related Topics Node JS Question 6 How do you handle database relationships and associations in an ORM like Sequelize or Mongoose? Answer In an ORM like Sequelize or Mongoose, you can handle database relationships and associations in a straightforward manner. Both Sequelize and Mongoose support defining and managing one-to-one, one-to-many, and many-to-many relationships. Here’s an …
