LFCS · Question #207
Which of the following export options, when specified in /etc/exports, will tell the server to use the NFSv4 Pseudofilesystem?
The correct answer is B. fsid=0. The question asks which /etc/exports option designates a directory as the root of the NFSv4 Pseudofilesystem.
Question
Options
- Afsid=2
- Bfsid=0
- Cfsid=3
- Dfsid=1
How the community answered
(21 responses)- A5% (1)
- B90% (19)
- D5% (1)
Why each option
The question asks which `/etc/exports` option designates a directory as the root of the NFSv4 Pseudofilesystem.
While `fsid` values are used to uniquely identify filesystems, `fsid=2` does not specifically denote the root of the NFSv4 pseudofilesystem.
In NFSv4, the `fsid=0` export option in `/etc/exports` is used to mark a directory as the root of the NFSv4 pseudofilesystem. This pseudofilesystem is a hierarchical namespace that clients see, and all other exported filesystems are mounted as subdirectories within it, ensuring a consistent NFSv4 view.
The `fsid=3` option is an arbitrary filesystem ID and does not carry the special meaning of designating the NFSv4 pseudofilesystem root.
The `fsid=1` option is an arbitrary filesystem ID and does not have the special function of indicating the NFSv4 pseudofilesystem root.
Concept tested: NFSv4 pseudofilesystem configuration
Source: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/storage_administration_guide/nfs-server-configuration
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