Set of open-source technologies used to create interactive Web sites today?

• A. Dynamic HTML
• B. Server-Side Scripting
• C. CSS
• D. Flash

Answer: (A)

Dynamic HTML captures the client-side technologies that bring web pages to life in the browser using open standards like HTML, CSS, and JavaScript. This stack handles structure, presentation, and behavior directly in the page, allowing interactive features to respond to user actions without reloading the page. It’s the best fit for “open-source technologies used to create interactive Web sites today” because it describes the in-browser tools developers rely on to create dynamic, interactive experiences with software that’s broadly implemented in open-source engines (like Chromium, Firefox, WebKit).

CSS is about styling; it can offer some interactive effects with animations, but it doesn’t provide the programming logic that drives interactivity. Flash was a plugin-based technology that is proprietary and largely obsolete now. Server-side scripting runs on the server to generate content, not in the browser, so it doesn’t describe the in-browser interactivity that users directly experience.