ACSP File System and Storage 4

Question 1

A user reports that their external SSD is not appearing in Finder but shows up in Disk Utility. What is the most likely cause?

Accepted Answer

The volume is not mounted

Answer

When a drive appears in Disk Utility but not Finder, it typically means the volume exists but is unmounted and needs to be mounted manually.

Question 2

Which macOS command-line tool can be used to display detailed information about disk partitions and their GUIDs?

Accepted Answer

diskutil list

Answer

The `diskutil list` command displays all disks and partitions including their types, sizes, and identifiers on macOS.

Question 3

What happens to a file's data when it is moved to the Trash on an APFS volume and then the Trash is emptied?

Accepted Answer

The file's space is marked as free but data may persist until overwritten

Answer

Emptying the Trash marks the file's storage blocks as available but does not immediately overwrite the data, so forensic tools may recover it.

Question 4

A technician needs to enable journaling on an HFS+ volume via Terminal. Which command accomplishes this?

Accepted Answer

diskutil enableJournal /dev/disk2s1

Answer

The `diskutil enableJournal` command enables HFS+ journaling on the specified volume, improving crash recovery.

Question 5

Which APFS feature automatically reclaims space from deleted files and snapshots without requiring user intervention?

Accepted Answer

Trim support

Answer

APFS supports TRIM, which signals the SSD controller to erase blocks from deleted files promptly, maintaining performance and reclaiming space.

ACSP - Apple Certified Support Professional Practice Test