单项选择题

A Network Engineer is reporting that one of the AIX hosts is generating too much ICMP traffic, which is slowing the network. Which of the following options is the most probable cause?（）

A.A large FTP job is in process.
B.A network interface was misconfigured.
C.The ping command is being used excessively.
D.A bad network interface card and/or network cable is in use.

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单项选择题Whichofthefollowingreasonsindicatewhyitisimportanttohavetheuserdemonstratethetasktheyaretryingtoperform?（）

A.To help the technician learn how to perform the task
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D.To help the technician determine if there is a better way to perform the task in question

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A. find /var/spool/lpd/qdir -mtime -7 -type f -exec rm -f {}\
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C. find -name /var/spool/lpd/* -exec rm {}\
D. find /var/spool/lpd/qdir -mtime +7 -type f -exec rm -f {}\