APFS is explicitly optimized to work with which storage technologies?

• A. Magnetic hard disks only
• B. Flash drives and solid-state drives
• C. Optical discs
• D. Network storage

Answer: (B)

APFS is designed with flash storage in mind. Its features—copy-on-write metadata, space sharing, fast cloning of files and directories, and efficient metadata handling—are all optimized for the randomness, low latency, and wear characteristics of SSDs and other flash memories. TRIM support helps reclaim unused space, keeping performance high as the system writes and deletes data. While APFS can run on traditional HDDs, it isn’t optimized for their characteristics, and it isn’t tailored for optical discs or network storage, which rely on different access patterns and protocols.