CodeHS Cybersecurity Level 1 Certification Practice Test

The file system that is exclusively used on Linux and has a 1 exabyte limit is Ext4. Ext4, or Fourth Extended File System, is a widely adopted file system in Linux environments and serves as an improved version of its predecessor, Ext3. One of the key advantages of Ext4 is its support for large storage capacities, allowing for individual file sizes of up to 16 terabytes and total file system sizes of up to 1 exabyte. This makes it an ideal choice for modern computing needs, particularly on servers and data-intensive applications.

Both FAT32 and NTFS are primarily associated with Windows operating systems. FAT32 has a maximum file size of 4 gigabytes and a total volume size limit of 8 terabytes, while NTFS supports larger sizes but is not exclusive to Linux. HFS is a file system used by macOS, making it irrelevant in the context of Linux file systems. Thus, Ext4 is the only option that meets the criteria for exclusive use on Linux with the stated size limit.