The filesystem that is optimized for flash drives is _______.

The Extensible File Allocation Table (exFAT) filesystem, like the File Allocation Table 32-bit (FAT32) filesystem, is designed for flash storage due to its minimal overhead (as opposed to New Technology File System [NTFS]). However, it will handle far larger file sizes than FAT32, which is restricted to 4 GB, just like NTFS. ExFAT is less compatible than FAT32 with non-Microsoft operating systems, but more compatible than NTFS. MacOS, for example, can only read NTFS partitions but can read and write exFAT partitions.