单项选择题
A.Fix Central
B.IBM AIX Toolbox
C.AIX Expansion Pack
D.Common base AIX CDs
单项选择题 Which tool validates firmware and HMC compatibility for a proposed AIX upgrade?（）
单项选择题 Which LPP status signifies the inability to return to a previous version of a fileset because the saved files have been removed?（）
单项选择题 What are the steps required to perform a Preservation install on a server?（）