Quizzes – EduHub

Question 1

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

To create a database connection To define a data table To store custom data private to the page or application 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 <list> tag Use a <div> with JavaScript to toggle a list Use <input type="dropdown"> Use <option> outside <select>

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 Preloads images Creates a template for email

Question 6

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

date time datetime datetime-local

Question 7

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

Prevents the iframe from loading Enables a set of extra restrictions on content in the iframe 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?

spell="on" check-spelling="yes" enable-spellcheck 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>?

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

Question 11

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

format validate regex pattern

Question 12

What is the purpose of the <datalist> element?

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

Question 13

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

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

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

Question 16

How can you define a custom element in HTML?

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

Question 17

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

Reverses the order of items visually Applies a reverse color scheme Flips the list horizontally 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?

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

Question 20

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

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