Quizzes – EduHub

Question 1

What is the purpose of the "data-*" attribute in HTML5?

To define a data table To store custom data private to the page or application To encrypt user data To create a database connection

Question 2

Which element is used to provide a caption for a <figure> element?

Question 3

What does the "contenteditable" attribute do?

Automatically saves the content Hides the content Makes the content read-only Allows the user to edit the content of an element

Question 4

How can you make a custom dropdown without using <select>?

Use <option> outside <select> Use <input type="dropdown"> Use a <div> with JavaScript to toggle a list Use <list> tag

Question 5

What is the correct way to use the <template> tag?

Holds HTML fragments that are not rendered until used by JavaScript Defines a reusable style Creates a template for email Preloads images

Question 6

Which input type is used for selecting a date and time?

date datetime-local time datetime

Question 7

What is the purpose of the "sandbox" attribute in an <iframe>?

Enables a set of extra restrictions on content in the iframe Prevents the iframe from loading Makes the iframe transparent Allows full access to parent page

Question 8

How do you specify that an <input> element should have spell checking enabled?

spellcheck="true" spell="on" check-spelling="yes" enable-spellcheck

Question 9

Which element is used to represent the main content of a document?

Question 10

What is the difference between "defer" and "async" in <script>?

No difference defer executes after HTML parsing, async executes as soon as downloaded defer downloads script immediately, async waits defer is for external scripts, async for inline

Question 11

Which attribute allows you to validate an email input with a specific pattern?

regex pattern validate format

Question 12

What is the purpose of the <datalist> element?

Creates a dropdown menu Used for data binding Defines a list of data items Provides an autocomplete list for an <input>

Question 13

How do you create a responsive iframe that maintains aspect ratio?

Wrap <iframe> in a <div> with padding-bottom and position relative Use width="100%" only Set viewport meta tag Use CSS transform

Question 14

Which HTML element is used to display a dialog box or modal?

Question 15

What does the "download" attribute in an <a> tag do?

Tells the browser to download the linked resource instead of navigating Prevents the link from opening Opens the link in a new tab Automatically saves the page as PDF

Question 16

How can you define a custom element in HTML?

Using data-custom attribute Using customElements.define() with JavaScript Using <element> tag Using <custom> tag

Question 17

What is the purpose of the "reversed" attribute in an <ol>?

Reverses the order of items visually Numbers the list in descending order (e.g., 3,2,1) Flips the list horizontally Applies a reverse color scheme

Question 18

Which element is used to define a sidebar or complementary content?

Question 19

What is the correct way to embed a PDF in an HTML page?

All of the above <embed src="file.pdf"> <iframe src="file.pdf"> <object data="file.pdf">

Question 20

How do you enable cross-origin resource sharing (CORS) for media elements?

cors="true" origin="*" allow-cors crossorigin attribute