Which of the following commands can be used to determine if a disk drive is causing a bottleneck?（）

单项选择题Whatistheproperwaytostartasystemdumponthedefaultprimarydumpdevice?（）

A. sysdumpdev -p 
B. sysdumpdev -s 
C. sysdumpstart -p 
D. sysdumpstart -s

单项选择题WhichfileisNOTcontrolledbythealogcommand?（）

A. conslog 
B. nimlog 
C. bosinstlog 
D. errlog

单项选择题Apatchhasbeenappliedtotheoperatingsystem.Afterrebooting,thesystemishung.Whichofthefollowingcommandsshouldhavebeenperformedtopreventthesystemfromhanging?（）

A. lppchk, bosboot 
B. lslpp -l, oslevel 
C. installp -C, lppchk 
D. bosboot, synclvodm 

单项选择题Whichofthefollowingkdbsubcommandsshouldbeenteredtoobtaininformationaboutaserialport?（）

A. tty
B. stat
C. trace
D. stream

单项选择题Whichlogfileshowspreviousinstallationinformation?（）

A. /var/adm/ras/bosinstlog 
B. /var/adm/ras/devinst.log 
C. /var/adm/rshlog 
D. /var/adm/sulog