While preparing a 256 GB SDXC card for use in DSLR cameras, a technician needs a file system that is specifically optimized for flash memory devices, supports files larger than 4 GB, and is natively readable and writable by both Windows 10 and macOS without additional drivers. Which file system should the technician select to format the card?
exFAT (Extensible File Allocation Table) was introduced by Microsoft in 2006 as an evolution of FAT32 aimed at removable flash storage. Its cluster alignment and lack of journaling reduce write amplification, and it removes the 4 GB file-size limit of FAT32. NTFS is optimized for internal drives, FAT32 is legacy with the 4 GB barrier, and APFS is Apple's modern file system but is not tuned for cross-platform flash use. Therefore, exFAT is the best choice for large, removable flash media.
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