单项选择题 A System p administrator wants to NFS mount a filesystem from server "alpha" to server "bravo".  Which of the following commands should be issued from "bravo" to determine which filesystems are being exported by server "alpha"（）

单项选择题 A System p administrator wishes to create a template file to monitor performance. Having found a template from January，  how can the administrator create a July template without destroying the original January version （）

单项选择题 A System p administrator has just installed a new technology level， but "oslevel -r" does not show the expected technology level.  Which of the following commands would determine which filesets are downlevel（）