Common File Systems for A+
Short answer
Technicians must recognize which filesystem is present to advise on file transfer, cross-platform access, and whether permissions or file-size limitations might cause problems. For removable drives, choose exFAT for large files and cross-platform access; use NTFS or ext4 for native OS features when possible.
Why it appears on the exam
- Given a support scenario, select which filesystem would be most appropriate for a cross-platform external drive intended to move >4 GB files. - Identify which filesystem on a device suggests the host OS (e.g., APFS -> macOS).
Key concepts
Concept 1
Required terms
NTFS: Windows default filesystem for modern internal drives; supports permissions, large files, journaling. FAT32: Older cross-platform filesystem with wide device compatibility but 4 GB max file size and limited permissions. exFAT: Cross-platform filesystem designed for removable media with large-file support and simpler permissions than NTFS. ext4: Common Linux filesystem for client installations; supports large files and POSIX permissions.
Example
USB drive formatted FAT32 will not accept a single file over 4 GB; replace with exFAT if large-file support is needed.
Concept 2
How Common File Systems works
Technicians must recognize which filesystem is present to advise on file transfer, cross-platform access, and whether permissions or file-size limitations might cause problems. For removable drives, choose exFAT for large files and cross-platform access; use NTFS or ext4 for native OS features when possible.
Example
External drive intended for Mac Time Machine backups should be formatted APFS or a supported macOS format, not NTFS.
Concept 3
Common confusion
- Thinking exFAT provides NTFS-style permissions: exFAT lacks advanced permission schemes and journaling. - Believing APFS/HFS+ are accessible on Windows without third-party tooling; native access is limited.
Example
A Linux-only external disk using ext4 will be readable on that Linux machine but not natively writable on Windows without drivers.
Concept 4
Core 2 (220-1202) question cues
Given a support scenario, select which filesystem would be most appropriate for a cross-platform external drive intended to move >4 GB files; Identify which filesystem on a device suggests the host OS (e.g., APFS -> macOS).
Example
USB drive formatted FAT32 will not accept a single file over 4 GB; replace with exFAT if large-file support is needed.
Sample questions
Select an answer to reveal the explanation. For tracked practice and weak-area review, use the Cultiv8 app.
Q1.A technician is troubleshooting this situation: External drive intended for Mac Time Machine backups should be formatted APFS or a supported macOS format, not NTFS. What should they identify?
Q2.A technician sees this situation: USB drive formatted FAT32 will not accept a single file over 4 GB; replace with exFAT if large-file support is needed. Which answer should they choose?
Q3.Read this A+ scenario: USB drive formatted FAT32 will not accept a single file over 4 GB; replace with exFAT if large-file support is needed. Which term or action matches it?
Practice this lesson in Cultiv8
The app adds tracked practice, targeted remediation, saved session history, and future readiness scoring.
Continue in Cultiv8