单选题Which command can be used to verify all the filesystems that are exported by an NFS server？（）A showmount -e hostnameB showmount -d hostnameC showmount -a hostnameD showmount
题目
单选题
Which command can be used to verify all the filesystems that are exported by an NFS server？（）
A
showmount -e hostname
B
showmount -d hostname
C
showmount -a hostname
D
showmount