Which of the following file systems was the first to be designed specifically for Linux?

The file system designed specifically for Linux is EXT, which stands for Extended File System. Developed in 1992 for the Linux operating system, EXT marked a significant advancement for Linux environments, providing features that were necessary for handling the needs of Linux users, such as large file support and better performance in managing disk space and files.

EXT was tailored to leverage the strengths of Linux, allowing for improved file management, reliability, and efficiency compared to other file systems of that time. It laid the foundation for future versions of the EXT file system, namely EXT2, EXT3, and EXT4, which introduced enhancements such as journaling file systems and faster access times.

FAT and NTFS are file systems initially designed for DOS and Windows environments, respectively, and thus are not specific to Linux. UFS, on the other hand, is a file system that originated from UNIX and while it has been used in Linux, it was not created specifically for it and is not as integral to the Linux ecosystem as the EXT family.