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File System and Storage Flashcards

7 cards from real ACSP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 File System and Storage flashcards as text

  1. A user wants to share a large video file between a Mac and a Windows 11 PC using an external drive without reformatting. Which file system supports this with files larger than 4 GB?

    Answer: ExFAT

    ExFAT supports files larger than 4 GB and is natively readable and writable on both macOS and Windows without additional drivers.

  2. Which macOS utility command verifies and repairs permissions on a volume running macOS Catalina or later?

    Answer: diskutil repairVolume /

    On macOS Catalina and later, `diskutil repairVolume` is used since System Integrity Protection manages system file permissions automatically.

  3. When a macOS system volume is mounted as 'read-only' after a failed update, what underlying technology enforces this protection?

    Answer: Signed System Volume (SSV)

    The Signed System Volume (SSV) cryptographically seals the system volume, and macOS mounts it read-only to protect its integrity.

  4. A Mac supports up to how many APFS volumes within a single APFS container before performance may be impacted?

    Answer: There is no defined limit; performance depends on available storage

    APFS imposes no hard limit on the number of volumes per container, but all volumes share the same pool of free space and I/O resources.

  5. What does the 'noatime' mount option do when applied to an APFS or HFS+ volume on macOS?

    Answer: Prevents access-time timestamps from being updated when files are read

    The `noatime` option stops macOS from writing an updated access-time to disk every time a file is read, reducing unnecessary write operations.

  6. A technician creates a new APFS volume inside an existing APFS container using Disk Utility. Which statement about the new volume's space allocation is correct?

    Answer: The new volume draws from the container's shared free space pool with optional quotas

    APFS volumes share a common pool of free space within the container, and optional size quotas or reservations can be set but are not required.

  7. Which file system check tool should be run against an APFS volume when 'fsck' is needed from macOS Recovery?

    Answer: fsck_apfs

    The `fsck_apfs` command is the file system consistency check tool specifically designed for APFS volumes on macOS.