单项选择题

Performance monitoring of a poorly performing system indicates a high level of CPU usage. Which tool can be used to help identify which processes are using excessive CPU resources？（）

A.sar
B.topas
C.iostat
D.vmstat

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热门试题

单项选择题Asystemadministratorreceivedthefollowingmessagewhiletryingtosshtoaserver：connectiontimedout.Theadministratorpingedtheserverandhadnoresponse.Theadministratorthenpingedthegateway，andwassuccessful.Whichtoolcouldtheadministratorusenexttoisolatetheproblem？（）

A.route
B.traceroute
C.netstat -nr
D.broadcast ping

单项选择题AusercallstoreporttheyaregettingI Oerrorsonafilesystem.Whichofthefollowingtoolsshouldbeusedtoisolatethisproblem？（）

A.df
B.diagrpt
C.errmsg
D.errpt