单项选择题
A. %idle < 10% B. %usr + %sys > 80% C. %sys + %wio > 80% D. %wio + %idle > 80%
Whichofthefollowingcommandsshouldbeusedtocheckwhetheras...
单项选择题Which of the following commands should be used to check whether a system dump is valid and readable?（）
A. kdb B. snap -d C. dbx -vmcore D. od /dev/sysdumpdev
Ifasystemadministratorwantstoshowonlyadiskreportfordisk...
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
Whichiostat%iowaitminimumthresholdindicatesapossibleI/O...
单项选择题Which iostat %iowait minimum threshold indicates a possible I/O bottleneck?（）
A.20% B.40% C.60% D.80%
