NSCT – Web Performance & Optimization MCQs 20 min Score: 0 Attempted: 0/20 Subscribe 1. . Web performance optimization refers to: (A) Only styling web pages (B) Improving the speed, responsiveness, and efficiency of web applications (C) Structuring HTML (D) Optimizing CPU onlyShow All Answers 2. . Page load time affects: (A) User experience, SEO, and conversion rates (B) Only CSS styling (C) HTML structure (D) CPU usage only 3. . Minification in web optimization is: (A) Styling HTML elements (B) Adding comments to code (C) Removing unnecessary characters from code (HTML, CSS, JS) to reduce file size (D) Optimizing CPU only 4. . Compression in web optimization refers to: (A) Structuring HTML only (B) Increasing file size (C) Styling CSS (D) Reducing the size of files (e.g., using Gzip or Brotli) for faster transfer 5. . Browser caching helps to: (A) Store frequently used resources locally to reduce server requests (B) Style web pages (C) Structure HTML (D) Optimize CPU only 6. . Lazy loading refers to: (A) Styling CSS (B) Preloading all resources immediately (C) Loading images, videos, or content only when they are needed or visible on the screen (D) Optimizing CPU only 7. . Reducing HTTP requests improves performance because: (A) It styles the page faster (B) Fewer requests mean faster page load (C) It structures HTML better (D) Optimizes CPU only 8. . Using a Content Delivery Network (CDN) helps: (A) Optimize CPU only (B) Style CSS faster (C) Structure HTML only (D) Serve resources from geographically closer servers to reduce latency 9. . Image optimization includes: (A) Optimizing CPU only (B) Only styling images (C) Structuring HTML only (D) Using proper formats (JPEG, PNG, WebP), compression, and responsive sizes 10. . Code splitting is used to: (A) Combine all JS into one file (B) Break large JavaScript bundles into smaller chunks for faster loading (C) Style HTML elements (D) Optimize CPU only 11. . HTTP/2 improves performance by: (A) Styling web pages (B) Allowing multiplexing, header compression, and server push (C) Structuring CSS (D) Optimizing CPU only 12. . Critical rendering path optimization focuses on: (A) Optimizing CPU only (B) Styling below-the-fold content (C) Structuring CSS (D) Prioritizing above-the-fold content for faster initial page render 13. . Asynchronous loading of JavaScript helps to: (A) Optimize CPU only (B) Style elements faster (C) Structure HTML only (D) Prevent blocking of page rendering 14. . Web performance tools include: (A) React, Angular, Vue (B) Google PageSpeed Insights, Lighthouse, GTmetrix, WebPageTest (C) Node.js, Express.js (D) MySQL, PostgreSQL 15. . Reducing DOM size improves performance because: (A) Styling is applied faster (B) Smaller DOMs render faster and reduce memory usage (C) HTML structure is optimized (D) CPU is optimized only 16. . Using web fonts efficiently improves performance by: (A) Structuring HTML (B) Styling all text at once (C) Limiting font weights, styles, and subsets to reduce load time (D) Optimizing CPU only 17. . HTTP caching headers like Cache-Control and ETag help: (A) Structure HTML (B) Style web pages (C) Control how resources are cached and validated to reduce unnecessary requests (D) Optimize CPU only 18. . Preloading and prefetching help to: (A) Style CSS faster (B) Load resources in advance to speed up perceived performance (C) Structure HTML (D) Optimize CPU only 19. . Web performance optimization benefits include: (A) Optimizing CPU only (B) Styling web pages only (C) Structuring HTML only (D) Faster load times, better UX, improved SEO, and reduced bounce rates 20. . The ultimate goal of web performance optimization is: (A) Only style web pages (B) Deliver fast, responsive, and efficient web applications to improve user satisfaction and engagement (C) Only structure HTML (D) Optimize CPU only
