Quizzes – EduHub

Question 1

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

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

Question 2

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

Question 3

What does the "contenteditable" attribute do?

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

Question 4

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

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

Question 5

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

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

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>?

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

Question 8

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

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

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>?

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

Question 11

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

validate format pattern regex

Question 12

What is the purpose of the <datalist> element?

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

Question 13

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

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

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?

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

Question 16

How can you define a custom element in HTML?

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

Question 17

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

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

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?

Question 20

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

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