单项选择题
If a system administrator wants to show only a disk report for disk2, at two second intervals, what is the correct command to run?()
A. iostat disk1 1
B. iostat -d disk1 2
C. iostat disk2 1
D. iostat -d disk2 2
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Whichiostat%iowaitminimumthresholdindicatesapossibleI/Obottleneck?()
A.20%
B.40%
C.60%
D.80% -
单项选择题
Whichcommandrecordsthepathtakenbynetworkpacketsbetweenasourceanddestinationsystem?()
A. traceroute
B. netstat -p
C. ping
D. netstat -rn -
单项选择题
Whichofthefollowingcommandsshouldbeusedtoobservethenumberofsystemcallspersecond?()
A. sar
B. iostat
C. svmon
D. vmstat
