What is the purpose of file compression?

• A. To increase file quality
• B. To enhance security
• C. To reduce the size of a file for storage and transmission
• D. To improve file metadata

Answer: (C)

The purpose of file compression is to reduce the size of a file for storage and transmission. When files are compressed, the amount of data they contain is minimized, making them easier to store and faster to transfer over networks. This is particularly important when dealing with large files or when bandwidth is limited, as smaller files can significantly reduce upload and download times.

Compression algorithms analyze the data in a file to find patterns and redundancies, allowing the file to be represented in a more efficient way. For example, text files often contain repeated characters or words, and compression can eliminate this redundancy to save space. Similarly, images and videos can be compressed by reducing their file size while maintaining a level of quality that is acceptable for viewing.

This is in contrast to the other options, where increasing file quality, enhancing security, or improving file metadata would not necessarily result in a smaller file size. Therefore, option C accurately captures the primary function of file compression.