单项选择题

Sometimes performance is more important than availability （e.g.， in cases where the data can be easily re-created）. Which of the following is the appropriate disk configuration for an application that requires faster writes over availability？（）

A.RAID-1
B.RAID-5
C.RAID-0+1
D.RAID-0

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单项选择题

A support specialist started to apply an APAR on a system by inserting the tape into the tape drive， and loaded the fix using smitty installp. The following error message is displayed：
tape not in backup format
Which of the following will resolve this problem？（）

A.Change density setting to 2
B.Set tape device to /dev/rmt0
C.Set block size to 0 for variable
D.Enable compression on tape device

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A user has used all of the allowed logon attempts for the userid. Which command can be used to reset the unsuccessful_login_count to 0 for that user？（）

A.usrck
B.chsec
C.chuser
D.passwd

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Which of the following is the default access control list file for the Resource Management and Control （RMC） subsystem？（）

A./var/rmc/ctrmc.acls
B./etc/ctrmc/rsct.acls
C./etc/security/rsct.acls
D./usr/sbin/rsct/cfg/ctrmc.acls