Quizzes – EduHub

Question 1

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

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

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

Question 4

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

Use a <div> with JavaScript to toggle a list Use <input type="dropdown"> Use <option> outside <select> 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 Creates a template for email Defines a reusable style Preloads images

Question 6

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

datetime-local date 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 Allows full access to parent page Makes the iframe transparent

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>?

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

Question 11

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

pattern validate regex format

Question 12

What is the purpose of the <datalist> element?

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

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 Use CSS transform Set viewport meta tag

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 Opens the link in a new tab Prevents the link from opening Automatically saves the page as PDF

Question 16

How can you define a custom element in HTML?

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

Question 17

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

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

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