SK0-004 · Question #83
A technician is backing up 10 GB of data on a file server to a 250 GB external USB hard drive. After 4 GB has been backed up, the software generates an error that the size of the backup exceeds the…
The correct answer is A. FAT32. FAT32 enforces a hard 4 GB maximum file size limit, so a backup that grows beyond that boundary will fail with a file size error even if the drive has ample free space.
Question
A technician is backing up 10 GB of data on a file server to a 250 GB external USB hard drive. After 4 GB has been backed up, the software generates an error that the size of the backup exceeds the file limit. Which of the following file system types is being used?
Options
- AFAT32
- BNTFS
- CVMFS
- DZFS
How the community answered
(38 responses)- A92% (35)
- B3% (1)
- C5% (2)
Why each option
FAT32 enforces a hard 4 GB maximum file size limit, so a backup that grows beyond that boundary will fail with a file size error even if the drive has ample free space.
FAT32 uses a 32-bit file size field, capping any single file at exactly 4,294,967,295 bytes (just under 4 GB). When the backup software attempts to write the fifth gigabyte into a single backup file, FAT32 cannot accommodate it and returns a file-size-exceeded error. This is a well-known limitation that distinguishes FAT32 from modern file systems and is the direct cause of the error described.
NTFS supports individual file sizes up to 16 TB, so a 10 GB backup would not trigger a file size error.
VMFS (VMware File System) is designed for virtual machine disk files and supports large files far exceeding 10 GB.
ZFS supports individual file sizes up to 16 exabytes and would not impose a 4 GB limit on a backup file.
Concept tested: FAT32 4 GB single file size limitation
Source: https://learn.microsoft.com/en-us/troubleshoot/windows-client/backup-and-storage/fat-hpfs-and-ntfs-file-systems
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