HTML Interview10 Q&A

HTML5 Features Interview

Interview questions on HTML5 additions including media, forms, storage, and APIs.

1Major improvements introduced in HTML5?medium

Answer: Semantic tags, native audio/video, enhanced form types, storage APIs, and canvas.

2How are audio/video embedded in HTML5?easy

Answer: Using audio and video tags with optional source elements.

3What is canvas used for?medium

Answer: Dynamic drawing/graphics via JavaScript.

4localStorage vs sessionStorage?medium

Answer: localStorage persists across sessions; sessionStorage lasts for current tab session.

5Examples of new input types?easy

Answer: email, url, number, date, range, color, tel, search.

6What is Geolocation API?medium

Answer: Browser API that can provide user location with permission.

7Why use semantic HTML5 tags?medium

Answer: Better structure for accessibility, SEO, and maintainability.

8What is native form validation benefit?medium

Answer: Built-in client checks reduce extra JavaScript for common validations.

9What does defer in script help with?easy

Answer: Prevents render blocking and runs script after HTML parsing.

10Interview best-practice summary?medium

Answer: Use modern HTML5 features where appropriate but keep graceful fallback strategy.