R093 - Properties and Formats of Media Files

Front

What is compression?

Back

Taking something very big and making it very small

Front

What is lossy compression?

Back

A compression technique that permanently deletes some data from the file

Front

What is lossless compression?

Back

A compression technique that retains all the data in the file

Front

Why is compression used for media files?

Back

To reduce file sizes for faster transmission and storage

Front

What happens when using lossy compression on an image file multiple times?

Back

The file size gets smaller, but the image quality decreases

Front

What is the difference between raster and vector images?

Back

Raster images are made up of pixels, while vector images are made up of calculated paths

Front

What is the pixel dimension of SD resolution?

Back

720 x 576

Front

Which video file format is commonly used for streaming and recommended by YouTube?

Back

MP4

Front

What is the frame rate of most video and animation?

Back

24 frames per second

Front

Which animation file format is commonly used for sharing animations online?

Back

GIF