Following a system boot， the display indicates that previously detected hardware is missing. 
Which of the following commands would identify the missing hardware（）

单项选择题Whichdiskconfigurationprovidesthefastestwriteperformancewithfaulttolerance（）

A.RAID 0
B.RAID 6
C.RAID 5
D.RAID 1+0

单项选择题An administrator plans to attach an IBM DS6000 and needs to know if the fibre channel adapter is at the latest firmware level.  Which of the following is the fastest way for the administrator to determine the  atest supported microcode level （）

A.Call Techline
B.Validate via DS6000 menu
C.Access IBM Storage Website
D.Contact the IBM Business Partner

单项选择题Duringreboot，thesystemhangswithanLED0554messagethatmeans， Thebootdevicecouldnotbeopenedorareadfailed. Whichofthefollowingrecoveryproceduresshouldbetaken（）

A.Boot in maintenance mode and use fsck to check hd5.
B.Boot in maintenance mode， access the rootvg and check the /etc/inittab for corruption.
C.Boot in maintenance mode， access the rootvg and rebuild the boot image using the bosboot command.
D.Boot in maintenance mode， and reset the root password.

单项选择题Anadministratorneedstoreplaceafailedinternaldiskinamirroredrootvg.Whichofthefollowingisoneofthestepsthatmustbefollowed（）

A.Deallocate rootvg mirror
B.Use hot replace manager
C.Break rootvg mirror
D.Deallocate LPs from failed disk

单项选择题AnadministratoridentifiedaproblemwithanAIXcommandandimplementedawork-around.AcallwasmadetoIBMSupporttoreporttheproblem.Whatseveritylevelshouldtheadministratorchoose（）

A.Crit-Sit
B.Severity 1
C.Severity 2
D.Severity 3