Which iostat %iowait minimum threshold indicates a possible I/O bottleneck?（）

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

单项选择题AllofthefollowingtypesofstatisticsarereportedbytheiostatcommandtoolEXCEPT:（）.

A. Free memory
B. CPU statistics 
C. Disk statistics 
D. Terminal statistics

单项选择题To examine the Exhibit, press the Exhibit button. Which option would produce this output from the errpt command? （）

A. errpt -t 
B. errpt -a 
C. errpt -D 
D. errpt

单项选择题AnSSAdiskthatispartofthemirroredvolumegroupneedstobereplaced.Whichofthefollowingproceduresshouldbeperformedbeforethediskisphysicallyabletobereplaced?（）

A.reducevg, rmdev, syncvg 
B.rmlvcopy, exportvg, rmdev 
C.rmlvcopy, reducevg, rmdev 
D.No action is required since SSA is a Hot Swap device and is mirrored