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单选题
Which of the following commands should be used to monitor disk utilization during the time a system is experiencing a disk I/O performance problem？（）
A
istat
B
topas
C
vmstat
D
filemon
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单选题Which of the following commands should be used to determine which disk of a system is experiencing a disk I/O performance problem？（）A
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Mirroring, with a parallel-scheduling policy, may improve I/O read-operation performance.D
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tprofB
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tprofB
topasC
filemonD
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单选题Which of the following WLM commands should be used to monitor performance on a system running wlm？（）A
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单选题After completing an installation of new software， a system administrator notices the system is slow. To troubleshoot the performance， which single AIX command could be used to provide a real-time display of CPU， memory and disk utilization（）A
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考题
单选题When analyzing disk I/O performance， which of the following metrics and/or statistics should be included in the study？（）A
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chvgB
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