Which command would help you verify which NFS exports are visible to the client during troubleshooting?

Which command would help you verify which NFS exports are visible to the client during troubleshooting?

• A. show mount -e
• B. showmount -e
• C. exportfs -v
• D. showmount -a

Answer: (A)

You want to see what the NFS server is offering to clients, i.e., the actual exported paths. The command showmount -e queries the NFS server for its export table and prints each exported directory along with its access permissions. This directly shows what a client could mount, which is exactly what you need when troubleshooting visibility issues. Other options don’t show the available exports themselves: showmount -a lists what is currently mounted on the server, not what the server exports; exportfs -v shows export entries with options on the server side but is more verbose and not the quick view of what a client can access. So the direct and reliable way to verify exports visible to the client is to use showmount -e.

You want to see what the NFS server is offering to clients, i.e., the actual exported paths. The command showmount -e queries the NFS server for its export table and prints each exported directory along with its access permissions. This directly shows what a client could mount, which is exactly what you need when troubleshooting visibility issues.

Other options don’t show the available exports themselves: showmount -a lists what is currently mounted on the server, not what the server exports; exportfs -v shows export entries with options on the server side but is more verbose and not the quick view of what a client can access. So the direct and reliable way to verify exports visible to the client is to use showmount -e.