What does the EXT file system stand for?

The term "EXT" in the context of computer file systems stands for "Extended File System." This file system is primarily used in Linux operating systems and has undergone several iterations, including EXT2, EXT3, and EXT4. Each version has introduced improvements in terms of performance, reliability, and support for larger file sizes and volumes.

EXT was designed to overcome the limitations of earlier file systems used in Unix-like operating systems, making it more robust for modern storage requirements. It supports features such as journaling, which helps protect data integrity by keeping a log of changes, thereby preventing corruption in the event of a crash or power failure.

In contrast, the other options presented do not accurately represent what EXT stands for in the context of file systems. External File Transfer does not relate to the functioning or purpose of the EXT file system. Extra File Type and Exponential File System do not correspond to established terminology in the area of computer file systems either. Thus, the correct answer accurately identifies the full term for EXT, emphasizing its significance in file management on Linux systems.