Session Review

Question 1 (104.2-024 / short_answer)

Which df option filters output to a specific filesystem type, such as ext4?

Status: Unanswered

Your Answer:

Accepted Answer(s):
-t
df -t ext4

Explanation:
The guided exercise answer explains that df can filter filesystems with the -t option followed by the filesystem name [1].

Question 2 (104.2-010 / multiple_choice)

Which fsck option prints what would be done and exits without actually checking the filesystem?

Status: Unanswered

Your Answer:

Options:

• -C
• -N
• -R
• -V

Explanation:
The lesson states that -N prints what would be done and exits, without actually checking the filesystem [1].

Question 3 (104.2-002 / multiple_choice)

Which command is used to view the amount of disk space in use on a filesystem?

Status: Unanswered

Your Answer:

Options:

• df
• du
• fsck
• tune2fs

Explanation:
The summary states that du is used to view the amount of disk space in use on a filesystem [1].

Question 4 (104.2-005 / multiple_choice)

What important warning applies when using fsck or related utilities?

Status: Unanswered

Your Answer:

Options:

• Always run them as a regular user
• Never run them on mounted filesystems
• Use them only on XFS filesystems
• They always repair without user interaction

Explanation:
The lesson explicitly warns: NEVER run fsck (or related utilities) on a mounted filesystem, otherwise data may be lost [1].

Question 5 (104.2-023 / short_answer)

Which command checks how much disk space is being used by just the files in the current directory, excluding subdirectories, in human-readable format?

Status: Unanswered

Your Answer:

Accepted Answer(s):
du -S -h -d 0
du -Shd 0

Explanation:
The guided exercise answer gives both command forms [1].

Question 6 (104.2-026 / command_line)

Enter the df command that lists every ext4 filesystem with device, mount point, total inodes, available inodes and percentage of free space.

Status: Unanswered

Your Answer:

Accepted Answer(s):
df -t ext4 --output=source,target,itotal,iavail,pcent

Explanation:
The guided exercise answer gives this exact command [1].

Question 7 (104.2-018 / multiple_choice)

Which du command shows only the disk usage of the current directory itself, excluding subdirectories, in human-readable format?

Status: Unanswered

Your Answer:

Options:

• du -S -h -d 0
• du -R -h .
• df -h .
• du -h -a .

Explanation:
The guided exercise answer gives du -S -h -d 0 or du -Shd 0 [1].

Question 8 (104.2-017 / multiple_choice)

Which command lists information for every ext4 filesystem, showing device, mount point, total inodes, available inodes and percentage of free space?

Status: Unanswered

Your Answer:

Options:

• df -t ext4 --output=source,target,itotal,iavail,pcent
• du -t ext4 --output=source,target,itotal,iavail,pcent
• df --output=source,target,size,used,avail
• fsck -t ext4 --output=source,target,itotal,iavail,pcent

Explanation:
The guided exercise answer gives df -t ext4 --output=source,target,itotal,iavail,pcent [1].

Question 9 (104.2-011 / multiple_choice)

Which fsck option, when used with -A, skips checking the root filesystem?

Status: Unanswered

Your Answer:

Options:

• -R
• -V
• -C
• -t

Explanation:
The lesson states that -R, used with -A, skips checking the root filesystem [1].

Question 10 (104.2-016 / multiple_choice)

Which e2fsck option answers no to all questions and prevents modifications?

Status: Unanswered

Your Answer:

Options:

• -p
• -n
• -y
• -R

Explanation:
The lesson states that -n answers no to all questions and causes the filesystem to be mounted read-only so it cannot be modified [1].