Symptom:
The user is unsure which NFS protocol versions remain enabled after unchecking the NFSv4 checkbox in the configuration settings.
Explanation:
- When the NFSv4 checkbox is checked, all three versions—NFSv2, NFSv3, and NFSv4—are enabled.
- If the NFSv4 checkbox is unchecked, only NFSv2 and NFSv3 remain active.