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
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相关考题
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单项选择题
Ifasystemadministratorwantstoshowonlyadiskreportfordisk2,attwosecondintervals,whatisthecorrectcommandtorun?（）
A. iostat disk1 1
B. iostat -d disk1 2
C. iostat disk2 1
D. iostat -d disk2 2 -
单项选择题
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
