单项选择题

Which of the following commands will clear all software entries in the error log？（）

A.errpt -d S
B.errclean 0
C.errclear -d S 0
D.errclean -d S 0

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单项选择题

A system administrator has just finished upgrading a system to AIX 5.2. If there are future problems， the system administrator would like to add an entry to the AIX errorlog to record this event. Which of the following commands can be issued for this purpose？（）

A./usr/bin/errmsg "System upgraded to AIX 5.2"
B./usr/bin/errlog "System upgraded to AIX 5.2"
C./usr/bin/errupdate "System upgraded to AIX 5.2"
D./usr/bin/errlogger "System upgraded to AIX 5.2"

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

单项选择题

A system administrator received the following message while trying to ssh to a server： connection timed out.The administrator pinged the server and had no response. The administrator then pinged the gateway， and was successful. Which tool could the administrator use next to isolate the problem？（）

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

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