单项选择题 A customer has multiple application servers which create one process for each connected user.  All users share the same AIX environment. What is a benefit of using WPARs in this environment？（）

单项选择题 An AIX 5.3 customer has a Power 780 in a 2-meter （T42） rack. This rack needs to be moved six inches （15cm） to allow under-floor access.   What preparation for moving the rack will result in the least disruption to end-users？（）

单项选择题 A Power 720 has AIX 6.1 and Linux partitions.During normal workloads there is more than enough memory available to the LPARs.  During month-end processing one partition becomes memory constrained.      What can help overcome this situation？（）