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單項選擇題

Which of the following commands displays the number of system calls per second that are being executed？（）

A. sar
B. pstat
C. iostat
D. filemon

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單項選擇題

Which of the following commands should be used to show how much data is read from or written to a particular logical volume， given there are several other logical volumes on the same disk？（）

A. sar
B. lslv
C. iostat
D. filemon

單項選擇題

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