Data Management - File optimisation

When talking about files, what is meant by resolution?

• Something you would like to achieve in the new year

• How much detail an image has, usually determined by its PPI

• The size of an image

• The size of a file

PPI and DPI stand for

• Pixels per inch and dots per inch

• Points per inch and dots per inch

• Pixels per intersection and divisions per inch

• Points per inch and division per inch

What are two strategies for reducing image file size?

• cropping and resampling

• cutting and pasting

• cropping and cutting

• resampling and pasting

What is resampling?

• resampling is resizing an image by reducing or increasing its number of pixels

• resampling is editing images in an editor such as Photoshop

• resampling is determining the size of a file by looking at its properties

• resampling is saving an image as an alternative file type

The process of cropping involves

• removing or cutting away part of an image and changing its aspect ratio

• reducing the number of pixels an image contains by changing its properties but not its original size

• resaving an image using a different file type

• blowing up an image

What is meant by lossless compression?

• reducing the file size without losing any data or sacrificing file quality

• reducing the file size by removing some of the information contained within the file that is deemed unimportant

What is meant by lossy compression?

• reducing the file size without losing any data or sacrificing file quality

• reducing the file size by removing some of the information contained within the file that is deemed unimportant

What effect does reducing the file size on images have on a website?

• it increases the time it takes a website to load

• it makes the images on the website appear smaller

• it decreases the time it takes a website to load

• it reduced the quality of the images

Where would you find information on an images resolution ?

• in the file properties

• in the image label

• from the file type

• you have to calculate it using information from dimensions and file size

What is meant by the term file optimisation?

• to edit the properties of a file (such as file size) to ensure it is suitable for the presentation medium it is intended to be used in

• to enhance the colours of an image file

• to edit the properties of a file to ensure it has the highest possible quality

• to reduce unnecessary information contained with the file