单项选择题

Whichofthefollowingcommandsshouldbeusedtoassurethatadumpcanbeforcedusingtheresetbuttononasystemwithoutakeyswitch?（）

A.sysdumpdev-k
B.sysdumpdev-L
C.sysdumpdev-K
D.sysdumpdev-P

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单项选择题

Asystemcontainsmultiplehot－swapstand－alonediskswithalargenumberofJFS2filesystems.WhichfeatureofJFS2canbeusedtoimprovereliability，availabilityandserviceability（RAS）ifadiskfailureoccurs？（）

A.Inlinelogging
B.Dynamicinodeallocation
C.Lineardirectoryorganization
D.Onlinefilesystemdefragmentation

单项选择题

Duringwhichbootphaseistherootvgfirstactivated（）

A.Phase1
B.Phase2
C.Phase3
D.POSTPhase