Full Stack Developer By Common JobsOctober 14, 2025October 24, 2025 Welcome to your Full Stack Developer Full Stack Developer Which of the following is NOT a JavaScript framework? Angular Django React Vue.js None Full Stack Developer What does CSS stand for? Cascading Style Sheets Computer Style Sheets Cascading Style System Creative Styling Syntax None Full Stack Developer Which of the following is a backend framework? Express.js Tailwind Bootstrap React None Full Stack Developer What does the fetch() function in JavaScript do? Reads local files Makes HTTP requests Loads CSS files Connects to databases None Full Stack Developer Which HTML tag is used to include JavaScript code? None Full Stack Developer Which HTTP method is idempotent? CONNECT POST PUT PATCH None Full Stack Developer In CSS, what does position: absolute; mean? The element is positioned relative to the page The element is positioned relative to its parent The element is fixed on the screen The element scrolls with the page None Full Stack Developer Which of these is used to handle asynchronous operations in JavaScript? Callbacks Alerts Both a and c Promises None Full Stack Developer Which SQL clause is used to filter records? WHERE FROM GROUP BY SELECT None Full Stack Developer What is JSX in React? JSON Syntax Extension Java Extended Script JavaScript XML JavaScript Syntax Extension None Full Stack Developer Which of these is a NoSQL database? PostgreSQL Oracle MongoDB MySQL None Full Stack Developer Which Node.js module is used to create a server? server express http net None Full Stack Developer In REST API design, which of the following represents a resource? Token Header Query URL None Full Stack Developer Which command initializes a new Node.js project? npm init npm install npm run init node start None Full Stack Developer Which lifecycle method is first invoked when a React component is mounted? render() componentWillMount() componentDidMount() constructor() None Full Stack Developer What does CORS stand for? Cross-Origin Resource Sharing Code-Origin Resource Sharing Cross-Origin Request Security Client-Origin Request System None Full Stack Developer Which of the following HTTP status codes indicates success? 200 404 403 301 None Full Stack Developer Which CSS preprocessor uses indentation instead of braces? SCSS Stylus LESS SASS None Full Stack Developer Which hook is used in React to manage state? useEffect useMemo useReducer useState None Full Stack Developer Which MongoDB command is used to update a document? change() updateOne() update() modifyOne() None Full Stack Developer In Express.js, which method handles GET requests? app.put() app.use() app.send() app.get() None Full Stack Developer What is the main difference between SQL and NoSQL databases? NoSQL uses tables SQL is faster SQL stores structured data; NoSQL stores unstructured data NoSQL requires schemas None Full Stack Developer What is the virtual DOM in React? A server-side object A JSON structure of components A direct representation of HTML A copy of the real DOM that updates faster None Full Stack Developer Which of the following ensures secure API communication? JWT (JSON Web Token) dSessions Headers Cookies None Full Stack Developer Which command creates a new React app using Create React App? npm create-react myApp npx create-react-app myApp npm install react myApp npx react-init myApp None
