LPIC-1 Devices, Filesystems and FHS Practice Question
Which TWO of the following are valid mount options for the ext4 filesystem?
⚠ Common exam trap
Test-takers frequently confuse generic mount options (like 'sync' or 'ro') with filesystem-specific options, or they misremember 'noload' as a valid ext4 option when it is actually an ext3 option or a misspelling of 'norecovery'.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
data=journal
'data=journal' is a valid mount option for ext4 that enables journaling of both metadata and file data, providing the highest level of data integrity by writing all data to the journal before the main filesystem. Option C is correct because 'noatime' is a standard mount option that disables updating the access time (atime) on inodes, reducing disk writes and improving performance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
sync
Why it's wrong here
Valid but not specific to ext4.
- ✓
data=journal
Why this is correct
Enables journaling of data, valid for ext4.
- ✓
noatime
Why this is correct
Disables access time updates, valid for ext4.
- ✗
ro
Why it's wrong here
Valid but not specific to ext4; the question says 'for ext4', implying typical options.
- ✗
noload
Why it's wrong here
Not a standard mount option.
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