Quick Revision

GK One-Line Question & Answer

15541+ short questions with short answers, covering every category and sub-category on the site — no long articles to scroll through. Good for a fast recap before an exam, or a few minutes of daily practice.

Looking for exam process/strategy questions instead? Try the Exam Preparation FAQ →

Computer Fundamentals → Introduction to Computer 39

What is a cookie in web technology?
Small data file stored in browser by website to remember user info
click to copy
Session in web development?
Temporary server-side storage of user data for duration of a browsing session
click to copy
REST API uses which HTTP methods primarily?
GET, POST, PUT, DELETE (CRUD operations)
click to copy
Which language is used to style XML documents?
XSLT (XSL Transformations)
click to copy
What is RSS (Really Simple Syndication)?
XML-based format for publishing frequently updated content (news, blogs)
click to copy
FTP default port is?
21
click to copy
Which protocol sends email?
SMTP
click to copy
Web 2.0 refers to?
Interactive, user-generated content web (blogs, social media, wikis)
click to copy
Web 3.0 (Web3) refers to?
Decentralized web using blockchain and semantic technologies
click to copy
Which organization maintains HTML standards?
W3C (World Wide Web Consortium)
click to copy
Semantic HTML elements include?
<header>, <nav>, <article>, <section>, <footer>
click to copy
Which HTML5 element is used for video?
<video>
click to copy
Canvas element in HTML5?
Provides 2D drawing surface for JavaScript graphics
click to copy
SVG in web development?
Scalable Vector Graphics — XML-based 2D vector graphics that scale without quality loss
click to copy
localStorage vs sessionStorage: localStorage?
Persists across sessions until explicitly cleared
click to copy
AJAX stands for?
Asynchronous JavaScript And XML — enables async web requests without page reload
click to copy
jQuery is?
A fast, lightweight JavaScript library simplifying DOM manipulation and AJAX
click to copy
Bootstrap is?
A CSS/HTML/JS front-end framework for responsive, mobile-first web development
click to copy
Which HTTP status code means 'Redirect'?
301 or 302
click to copy
Which attribute in HTML form tag specifies where to send data?
action
click to copy
DOM (Document Object Model) is?
Tree representation of HTML document elements for JavaScript manipulation
click to copy
JSON.parse() in JavaScript?
Converts JSON string to JavaScript object
click to copy
JSON.stringify() converts?
JavaScript object to JSON string
click to copy
Which HTTP header controls caching?
Cache-Control
click to copy
Content-Type header specifies?
The media type of the request/response body (e.g., application/json)
click to copy
CORS preflight request uses which HTTP method?
OPTIONS
click to copy
WebRTC enables?
Real-time peer-to-peer audio, video, and data in browsers without plugins
click to copy
Progressive Web App (PWA) features include?
Offline capability, installable, push notifications using service workers
click to copy
Which Windows version introduced the Start Menu?
Windows 95
click to copy
Windows Task Manager shortcut is?
Ctrl+Shift+Esc
click to copy
Which Windows command checks disk for errors?
chkdsk
click to copy
The Windows Registry is?
A hierarchical database storing OS and application configuration
click to copy
regedit command opens?
Windows Registry Editor
click to copy
msconfig in Windows is used to?
Configure startup programs and services (System Configuration)
click to copy
Which Windows shortcut opens Run dialog?
Win+R
click to copy
Win+D shortcut in Windows?
Shows/hides desktop (minimizes all windows)
click to copy
Win+L shortcut in Windows?
Locks the computer screen
click to copy
Device Manager in Windows manages?
Hardware devices and drivers
click to copy
Which Windows command shows IP configuration?
ipconfig
click to copy

Computer Fundamentals → Internet Basics 1

URL encoding replaces spaces with?
+ or %20
click to copy