单项选择题
A. sar B. pstat C. iostat D. filemon
Whichofthefollowingcommandsshouldbeusedtoshowhowmuchdat...
单项选择题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
Whichofthefollowingcommandsshouldbeusedtomonitordiskuti...
单项选择题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
Afterrunningthevmstatcommand，whichofthefollowingwouldmo...
单项选择题After running the vmstat command， which of the following would most likely cause the value in the blocked column to be unusually high？（）
A. Kernel thread B. Too many users C. Memory shortage D. Network contention
