Image Files

Which of these best describes the characteristics of a Raster Image?

• An image that is made of mathematical equations that is blurry or pixelated when resized.
• An image that uses mathematical equations to create lines and shapes that remains clear and smooth when resized.
• An image that is made of pixels that becomes blurry or pixelated when enlarged.
• An image that is made of pixels that remains clear and smooth when resized.

Which of these best describes the characteristics of a Vector Image?

• An image that is made of mathematical equations that is blurry or pixelated when resized.
• An image that uses mathematical equations to create lines and shapes that remains clear and smooth when resized.
• An image that is made of pixels that becomes blurry or pixelated when enlarged.
• An image that is made of pixels that remains clear and smooth when resized.

Which file type can include both raster and vector images and is best used when I am sharing a file that I do not want to be changed?

• pdf
• png
• jpg
• svg

Which file type is best if I want to create a logo that will be for a variety of purposes and in a variety of sizes?

• pdf
• png
• jpg
• svg

Which file type is a compressed raster image using lossless compression and is best to use when I want to layer multiple images on top of one another or over a background that is not white?

• pdf
• png
• jpg
• svg

Which file type is a compressed raster image using lossy compression and is best for photographs?

• pdf
• png
• jpg
• svg

What is lossless compression?

• a method of compression that retains all the data of the uncompressed file so that when the file is uncompressed all the original data is included
• a method of compression that permanently eliminates some file information so that when the file is uncompressed only a portion of the original information remains
• a method of compression used to enlarge files from their original size
• a method of compression used to create images that have more data included

What is lossy compression?

• a method of compression that retains all the data of the uncompressed file so that when the file is uncompressed all the original data is included
• a method of compression that permanently eliminates some file information so that when the file is uncompressed only a portion of the original information remains
• a method of compression used to enlarge files from their original size
• a method of compression used to create images that have more data included

Image resolution tells how sharp or clear an image will be when displayed.

• true
• false

What is the minimum recommended size in pixels for an image that will be used in a presentation and projected as a full screen image?

• 200 pixels by 600 pixels
• 300 dpi
• 1200 dpi
• 1000 pixels by 1000 pixels