单项选择题 The /etc/qconfig file needs to be modified on a busy AIX print server with 30 printers attached.  What action should be performed before modifying this file（）

单项选择题 A System p admistrator must document the date of the latest update of the development systems. Which of the following commands will provide this information （）

单项选择题 A System p administrator plans to install a new system with AIX 5.3 TL5 using a NIM server.  Which of the following provide post install diagnostics（）