Quizzes – EduHub

Question 1

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

To encrypt user data To define a data table To store custom data private to the page or application 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?

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

Question 4

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

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

Question 5

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

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

Question 6

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

time date datetime-local 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?

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

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 downloads script immediately, async waits defer executes after HTML parsing, async executes as soon as downloaded

Question 11

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

pattern format validate regex

Question 12

What is the purpose of the <datalist> element?

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

Question 13

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

Set viewport meta tag Use CSS transform Wrap <iframe> in a <div> with padding-bottom and position relative 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?

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

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>?

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

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?

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