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Gujarat Metro Rail Corporation has released recruitment notification for Maintainer Posts in Ahmedabad & Surat Metro Rail projects. Candidates wit...

Gujarat Metro Rail Corporation has released the latest recruitment notification for the post of Junior Engineer (Electronics) for Ahmedabad & Sura...

Gujarat Metro Rail Corporation has released the latest recruitment notification for the post of Junior Engineer (Electronics) for Ahmedabad & Sura...

Gujarat Metro Rail Corporation has released the latest recruitment notification for the post of Junior Engineer (Electrical) for Ahmedabad & Surat...

Gujarat Metro Rail Corporation has released the latest recruitment notification for the post of Station Controller / Train Operator (SC/TO) for Ahmeda...

To install SSL certificates for website on an Ubuntu server using the command line, you can use Let's Encrypt with Certbot, which is free and wide...

 Axios Module make HTTP requests from your Node.js server or script, like fetching or sending data to APIs. Install axios Module npm ins...

What is a JSON API? A JSON API is a type of web API (Application Programming Interface) that uses JSON (JavaScript Object Notation) as the format f...

1. Check if MongoDB is Running using below cmd sudo systemctl status mongod If MongoDB is not running, start it: sudo systemctl start mongo...

To disable all ModSecurity rules on CentOS, you can either disable the entire ModSecurity engine or turn off the rules globally for your web server (A...

Step 1: Install Certbot via Snap (Recommended by Let's Encrypt) To avoid compatibility issues with the package manager, you can install Certbot...

111. What is the purpose of the `useEffect` hook in React? a) To manage component state b) To perform side effects after every render (Cor...

101. In React, which lifecycle method is called when a component is about to update? a) componentWillMount b) componentDidUpdate c) com...

What will be the output of the following React component? import React from 'react'; const MyComponent = () => {   co...

Which of the following statements correctly imports React in a JSX file? a) import React from 'react'; (Correct Answer) b) re...

What is the purpose of the children prop in a React component? a) It represents the child components rendered inside the component (Corr...

What is the purpose of the useRef hook in React? a) To create references to DOM elements or React components (Correct Answer) b) To m...

In React, which method is called before the component is removed from the DOM? a) componentWillUnmount (Correct Answer) b) componentD...

Which of the following lifecycle methods is called only once, after the initial render? a) componentWillMount b) componentDidMount (C...

What is the purpose of the useRef hook in React? a) To create references to DOM elements or React components (Correct Answer) b) To m...