Quiz- Web-Optimization

What is the primary goal of image optimization?

• Increase file size

• Improve image resolution only

• Reduce file size while maintaining acceptable quality

• Convert images to grayscale

Which of the following image formats supports lossless compression?

• JPEG

• PNG

• GIF

• Both b and c

Which compression technique removes unnecessary image data permanently?

• Lossless compression

• Lossy compression

• Vector compression

• Pixel interpolation

Which image format is best suited for photographs on the web?

• PNG

• JPEG

• BMP

• TIFF

What does WebP format offer compared to JPEG and PNG?

• Larger file sizes

• No transparency support

• Better compression with quality retention

• Only works in Internet Explorer

Which tool is commonly used for image optimization?

• Photoshop

• TinyPNG

• ImageOptim

• All of the above

What is a major drawback of using unoptimized images on a website?

• Slower page loading speed

• Increased SEO ranking

• Better website performance

• Improved user experience

Which technique helps to improve image loading time on websites?

• Lazy loading

• Increasing image resolution

• Storing images in database

• Using only GIFs

What is the recommended resolution for web images to balance quality and performance?

• 300 DPI

• 72 DPI

• 1200 DPI

• 50 DPI

Which CSS property can be used to serve different images for different screen sizes?

• display: flex;

• background-size: contain;

• max-width: 100%;

• srcset in tag