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单选题
Which of the following metrics provided by the iostat report is used to initially determine if a disk is I/O bound？（）
A
tin
B
tout
C
% idle
D
% tm_act
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单选题A system administrator ran the iostat command because of system performance problems. The following iostat output is provided： Based on the output， which of the following is insufficient？（）A
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单选题In an iostat report， which of the following options best describes the value of % idle？（）A
A representation of the equation （tps/kbps）*100B
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CPUB
MemoryC
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iostatC
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单选题In an iostat report， which of the following options best describes the value of % tm_act？（）A
The total CPU usage for this driveB
The bandwidth utilization of the indicated driveC
It can best be represented by the equation （%iowait - %ioidle）D
It can best be represented by the equation （kilobytes read/kilobytes written） *100
考题
单选题Which of the following phrases is TRUE regarding monitoring disk I/O with iostat？（）A
The iostat can only be run as the root userB
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Running iostat without any arguments/parameters is sufficient for resolving I/O bottlenecks
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errmsgD
errpt
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单选题Which of the following metrics provided by the iostat report is used to initially determine if a system is I/O bound？（）A
% idleB
% sysC
% userD
% iowait
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单选题When analyzing disk I/O performance， which of the following metrics and/or statistics should be included in the study？（）A
Disk size， stock availability， VHDCIB
Disk size， distance， temperature， and compatibilityC
Disk fragmentation， MTBF， and maintenanceD
Disk configuration， throughput， transactions， queues， and latencies
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