单项选择题
After the /etc/tunables/nextboot file has been edited, which command can be used to validate changes to the IO performance tuning settings?（）
A.ioo -v nextboot B.ioo -c nextboot C.valcheck -f nextboot D.tuncheck -r -f nextboot
单项选择题 Which presents the heirarchical relationship between LVM entities?（）
单项选择题 Which command will activate a defined paging space?（）
单项选择题 AIX shows the boot order in the following output.hdisk0 hdisk1 blv=hd5 cd0. What will happen when the system administrator reboots the server?（）
