What does the following jQuery code do: $('a[href*="#"]').on('click', function(event) { event.preventDefault(); $('html, body').animate({ scrollTop: $($.attr(this, 'href')).offset().top }, 500); });

What does the following jQuery code do: $('.carousel').on('swipeleft', function() { $(this).carousel('next'); });

A). Enables swipe gestures to navigate the carousel

B). Disables carousel functionality

C). Increases carousel speed

D). Decreases carousel visibility

How can jQuery be used to handle touch events on mobile devices?

A). By using .on('swipeleft') and .on('swiperight')

B). By using .click() and .hover()

C). By using .resize() and .load()

D). By using .submit() and .change()

Which jQuery event is useful for creating swipe gestures on touch devices?

A). .click()

B). .hover()

C). .swipe()

D). .keypress()

Which jQuery method can be used to animate smooth scrolling for anchor links?

A). .fadeIn()

B). .slideUp()

C). .animate()

D). .hide()

Why should images be optimized for different devices in responsive web design?

A). To improve loading times and performance

B). To decrease image quality

C). To increase server load

D). To restrict image visibility

What is the primary goal of responsive web design?

A). To reduce server load

B). To adapt to different screen sizes and devices

C). To increase website loading speed

D). To restrict website access to certain devices

Which jQuery method is used to detect changes in the viewport size?

A). .change()

B). .resize()

C). .scroll()

D). .toggle()

Why is it important to handle touch events in responsive web design?

A). To increase server load

B). To enhance user experience on touch devices

C). To restrict access to desktop users

D). To decrease website loading speed

How does jQuery help in optimizing images for responsive design?

A). By resizing images on the server

B). By dynamically loading different images based on viewport size

C). By reducing image quality

D). By increasing image dimensions

What does the following jQuery code achieve: $('img').each(function() { var src = $(this).attr('src'); if($(window).width() < 768) { $(this).attr('src', src.replace('large', 'small')); } });

A). Increases image sizes for smaller screens

B). Replaces image sources with smaller versions for screens smaller than 768px

C). Removes all images from the page

D). Changes image sources randomly