What does the following CSS media query do: @media (orientation: portrait) { ... }?

Why is it important to use $(document).ready(function() { ... }); in jQuery?

A). To ensure the DOM is fully loaded before executing scripts

B). To increase script execution speed

C). To prevent scripts from running

D). To hide content until the user interacts with the page

Which jQuery method is used to change the source of an image dynamically?

A). .attr()

B). .html()

C). .css()

D). .val()

How can you ensure that a layout adjusts to different screen sizes using CSS?

A). By setting fixed widths

B). By using relative units like percentages and media queries

C). By hiding elements

D). By using absolute positioning

What does the max-width property do in responsive design?

A). Sets a fixed width

B). Allows an element to shrink below a specified width

C). Ensures an element does not exceed a specified width

D). Hides an element if it exceeds a certain width

What is the purpose of using $(window).resize() in jQuery?

A). To detect when the window is resized and execute a function

B). To detect mouse clicks

C). To load new content

D). To change the CSS of an element

What does the .on('click', function) method in jQuery do?

A). Attaches a click event handler to selected elements

B). Hides selected elements

C). Changes the background color of selected elements

D). Resizes selected elements

What are CSS media queries used for?

A). Adding animations to elements

B). Applying styles based on the device characteristics

C). Creating image sliders

D). Defining CSS variables

What is the primary purpose of responsive web design?

A). To make websites load faster

B). To make websites compatible with older browsers

C). To ensure websites render well on various devices and screen sizes

D). To reduce the amount of CSS required

How can touch events be handled in jQuery for responsive design?

A). By using .hover() method

B). By using .click() method

C). By using .swipe() method

D). By using .resize() method

What does the $('.menu-toggle').click(function() { $('.menu').slideToggle(); }); code do?

A). Hides the menu permanently

B). Toggles the visibility of the menu with a sliding effect

C). Fixes the menu position

D). Changes the menu color