Which of the following commands should be used to report statistics on network protocols used by the system？（）

单项选择题Whichofthefollowingtoolsshouldbeusedtoanalyzetheplacementoffilefragmentsonamirroredlogicalvolume？（）

A. df
B. lslv
C. filemon
D. fileplace

单项选择题Whichofthefollowingcommandsshouldbeusedtoshowthepercentageoftimethatanygivendiskwasbusy？（）

A. ps
B. tprof
C. iostat
D. vmstat

单项选择题Themaxmbuffislowbydefaultforsystemsexpectinghighnetworktrafficand orusage.Whichofthefollowingutilitiesshouldbeusedtoreportrequestsformbufsthathavefailedand orbeendenied？（）

A. no
B. ping
C. netstat
D. ifconfig

单项选择题WhichofthefollowingcommandsshouldbeusedtodeterminewhichdiskofasystemisexperiencingadiskI Operformanceproblem？（）

A. filemon
B. istat
C. vmstat
D. iostat

单项选择题Whichofthefollowingcommandscanbeusedtocleanupafailedsoftwareinstallationprocess？（）

A. installp -D
B. installp -d
C. installp -C
D. installp -c