What is the ratio of physical partitions to logical partitions in rootvg in a non-mirrored environment（）

An administrator requires a summary of current configuration for each system. This is needed for an  audit trail. 
Which of the following will provide this information（）

An administrator needs to determine what the default run level of a system is. 
Which command would be used（）

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（）