单项选择题
A system administrator is considering enabling the 64-bit kernel but first must determine if the system hardware will support 64-bit. How would this be accomplished in AIX 5L？（）
A.prtconf -c
B.lscfg -v sys0
C.Check the /unix link
D.Check for JFS2 filesystems
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A.RAID-1
B.RAID-5
C.RAID-0+1
D.RAID-0 -
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AsupportspecialiststartedtoapplyanAPARonasystembyinsertingthetapeintothetapedrive，andloadedthefixusingsmittyinstallp.Thefollowingerrormessageisdisplayed： tapenotinbackupformat Whichofthefollowingwillresolvethisproblem？（）
A.Change density setting to 2
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C.Set block size to 0 for variable
D.Enable compression on tape device -
单项选择题
Auserhasusedalloftheallowedlogonattemptsfortheuserid.Whichcommandcanbeusedtoresettheunsuccessful_login_countto0forthatuser？（）
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C.chuser
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