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 create a database connection To encrypt user data

Question 2

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

Question 3

What does the "contenteditable" attribute do?

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

Question 4

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

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

Question 5

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

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

Question 6

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

datetime-local datetime date time

Question 7

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

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

Question 8

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

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

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 downloads script immediately, async waits defer is for external scripts, async for inline No difference 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?

validate pattern format regex

Question 12

What is the purpose of the <datalist> element?

Defines a list of data items Creates a dropdown menu Used for data binding 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 Set viewport meta tag Use width="100%" only 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?

Opens the link in a new tab Automatically saves the page as PDF 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 <custom> tag Using data-custom attribute Using customElements.define() with JavaScript Using <element> tag

Question 17

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

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

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?

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