AQA GCSE CS 3.3.6 Representing Images

Which algorithm is commonly used for image compression?

• XML
• HTML
• CSS
• JPEG

What is the range of each RGB component in a bitmap image?

• 0 to 1
• 0 to 100
• 0 to 10
• 0 to 255

What can affect rendering techniques for bitmap images?

• The resolution of the image
• The color depth of the image
• The size of the image file
• All of the above

What is the pixel depth of a bitmap image that supports 256 colors?

• 32-bit
• 1-bit
• 24-bit
• 8-bit

How is image resolution typically measured?

• Pixels per inch (ppi) or dots per inch (dpi)
• Frames per second (fps)
• Megabytes or gigabytes
• Inches or centimeters

How does increasing the pixel depth of a bitmap image affect the file size?

• Decreases the file size
• Increases the file size
• Randomly changes the file size
• Has no effect on the file size

What is the function of pixels in a bitmap image?

• To represent the background of an image
• To represent the smallest unit of an image
• To represent the largest unit of an image
• To represent the foreground of an image

What are the trade-offs of higher resolutions in bitmap images?

• Lower quality and pixelation
• Smaller file sizes and faster processing
• Less storage space and processing power required
• Finer details and smoother images

What is a bitmap?

• A programming language
• A hardware component
• A type of computer virus
• A widely used image representation

What are the components of a pixel grid in a bitmap image?

• Triangles and squares
• Curves and angles
• Rows and columns
• Lines and circles