Linux Foundation Certified System Administrator (LFCS) — Question 139

Which of the following is correct when talking about mount points?

Answer options

• A. Every existing directory can be used as a mount point.
• B. Only empty directories can be used as a mount point.
• C. Directories need to have the SetUID flag set to be used as a mount point.
• D. Files within a directory are deleted when the directory is used as a mount point.

Correct answer: A

Explanation

The correct answer is A because any existing directory can indeed be a mount point, allowing the filesystem to be mounted at that location. Option B is incorrect as it implies restrictions that do not exist. Option C is wrong since there is no requirement for the SetUID flag for a mount point, and option D is also incorrect because files within the directory are not deleted; they remain accessible when the mount occurs.