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🔹 SQL Interview Questions & Answers (Hindi) 1. SQL क्या है? उत्तर: SQL (Structured Query Language) एक भाषा है जिसका उपयोग Database से Data को Store, Retrieve, Update और Delete करने के लिए किया जाता है। 2. Database क्या होता है? उत्तर: Database डेटा का एक organized collection होता है, जिसमें डेटा सुरक्षित तरीके से…
✅ PHP Interview Questions & Answers (Hindi) 1. PHP क्या है? उत्तर:PHP एक server-side scripting language है जिसका उपयोग dynamic websites और web applications बनाने के लिए किया जाता है। 2. PHP का पूरा नाम क्या है? उत्तर:PHP का पूरा नाम PHP: Hypertext Preprocessor है। 3. PHP का उपयोग क्यों किया जाता है? उत्तर:PHP का…
🔹 Bootstrap Basics (1–15) 1. What is Bootstrap? Bootstrap is a popular front-end CSS framework used to create responsive and mobile-first websites quickly. 2. Who developed Bootstrap? Bootstrap was developed by Twitter. 3. What is the latest version of Bootstrap? Bootstrap 5 (commonly used in projects). 4. Is Bootstrap free? Yes, Bootstrap is open-source and…
🔹 HTML Basics (1–15) 1. What is HTML? HTML (HyperText Markup Language) is used to create the structure of web pages. 2. What is a tag? A tag is a keyword enclosed in angle brackets < > used to define HTML elements. 3. What is an element? An element consists of opening tag + content…
🔹 CSS Basics (1–15) 1. What is CSS? CSS (Cascading Style Sheets) is used to style and design HTML elements on web pages. 2. Types of CSS? 3. What is CSS selector? Selector is used to select HTML elements for styling. 4. Types of selectors? 5. Difference between class and id? 6. What is CSS…
🔹 React Basics (1–15) 1. What is React? React is a JavaScript library used to build fast, interactive user interfaces, especially Single Page Applications (SPA). 2. Who developed React? React was developed by Facebook (Meta). 3. What are components in React? Components are reusable UI blocks in React. 4. Types of components? 5. What is…
🔹 JavaScript Basics (1–15) 1. What is JavaScript? JavaScript is a lightweight, interpreted programming language used to make web pages interactive (buttons, forms, animations, APIs, etc.). 2. Is JavaScript compiled or interpreted? JavaScript is interpreted, but modern browsers use JIT (Just-In-Time) compilation for faster execution. 3. Difference between var, let, and const? Feature var let…
🔍 What is SEO? (Search Engine Optimization) – Full Information ✅ Definition of SEO SEO (Search Engine Optimization) is the process of optimizing a website so that it ranks higher in search engine results (Google, Bing, etc.) for relevant keywords and gets organic (free) traffic. 👉 Example:If someone searches “Best Web Developer in India” and…