How can an administrator determine how many physical copies there are of a mirrored logical volume in rootvg（）

A System p administrator has created a customized security profile using AIX Security Expert. 
Which of the following commands will apply this to a system（）

A System p administrator found a process on the server that should be stopped. 
Which of the following commands can be used to list all the signal actions defined for this process（）

For security reasons， an administrator is asked to modify the system to prevent someone from 
leaving a terminal logged in. 
Which of the following options would enable a five minute timeout for all users（）