Which file system is designed for Linux operating systems?

The file system designed specifically for Linux operating systems is ext4. This file system is an evolution of the earlier ext3 and ext2 file systems and is widely used due to its robustness, performance, and features. ext4 offers improvements in several areas, such as larger file size and volume capacity, improved filesystem checks (fsck), and journaling, which helps improve data integrity and recovery in case of crashes.

Additionally, ext4 supports features like delayed allocation, which helps with efficient disk space allocation and increases performance by improving how files are stored on the disk. These characteristics make ext4 a popular choice among Linux users and distributions, ensuring efficient and reliable data storage.

In contrast, the other file systems listed are primarily associated with different operating systems: NTFS is used by Windows, ReFS is also a Windows file system optimized for resilience and large data volumes, and HFS+ is mostly associated with macOS. This distinction further clarifies why ext4 is the correct answer for Linux operating systems.