单项选择题 An  administrator  can  create  logical  volumes  and  then  add  file  systems  to  them，  or  create  the  file  system directly.  What is an dvantage of the two-step approach instead of the one-step approach（）

单项选择题 An administrator suspects someone is modifying a sensitive file， and wants to log access information for this file.  Which of the following AIX component accomplishes this（）

单项选择题 A user reports that they cannot cd to /tmp/application. A system administrator entered the following    command： Is -Id /tmp/application   drw-r-r- 4 root system 512 Jan 15 14：09 application Which of the following is the most likely cause of the  problem（）