Which technique reduces file size to save storage space?

Which technique reduces file size to save storage space?

• A. File Compression
• B. Encryption
• C. Disk Formatting
• D. Defragmentation

Answer: (A)

Saving storage space is achieved through file compression, which uses algorithms to reduce redundancy and represent data more efficiently. By encoding information more compactly, the file becomes smaller without changing its overall content. There are two main flavors: lossless compression, which lets you restore the exact original file, and lossy compression, which removes some data to achieve even smaller sizes—acceptable for many media files where a perfect reproduction isn’t necessary. Examples include ZIP or gzip as lossless methods, and JPEG or MP3 as lossy methods. Encryption is about protecting data so it can’t be read by others; it doesn’t aim to shrink file size. Disk formatting prepares a drive with a file system and won’t reduce the amount of data stored. Defragmentation reorders existing data to improve access speed and efficiency; it doesn’t actually reduce the total data size, though it can help use space more effectively on certain systems. So, the technique that truly reduces file size to save storage space is file compression.

Saving storage space is achieved through file compression, which uses algorithms to reduce redundancy and represent data more efficiently. By encoding information more compactly, the file becomes smaller without changing its overall content. There are two main flavors: lossless compression, which lets you restore the exact original file, and lossy compression, which removes some data to achieve even smaller sizes—acceptable for many media files where a perfect reproduction isn’t necessary. Examples include ZIP or gzip as lossless methods, and JPEG or MP3 as lossy methods.

Encryption is about protecting data so it can’t be read by others; it doesn’t aim to shrink file size. Disk formatting prepares a drive with a file system and won’t reduce the amount of data stored. Defragmentation reorders existing data to improve access speed and efficiency; it doesn’t actually reduce the total data size, though it can help use space more effectively on certain systems.

So, the technique that truly reduces file size to save storage space is file compression.