A user tries to ftp a 3 gigabyte file to an AIX machine at certain times during the day.  The file transfer fails at exactly 2,147,483,584 bytes each time.  All of the following are probable causes of the failures EXCEPT:（）

单项选择题ANetworkEngineerisreportingthatoneoftheAIXhostsisgeneratingtoomuchICMPtraffic,whichisslowingthenetwork.Whichofthefollowingoptionsisthemostprobablecause?（）

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. 

单项选择题Whichofthefollowingreasonsindicatewhyitisimportanttohavetheuserdemonstratethetasktheyaretryingtoperform?（）

A.To help the technician learn how to perform the task 
B.To determine if the user is performing the task properly 
C.To determine if the user is authorized to perform the task 
D.To help the technician determine if there is a better way to perform the task in question 

单项选择题Whichofthefollowingcommandsshouldbeusedtoassurethatadumpcanbeforcedusingtheresetbuttononasystemwithoutakeyswitch?（）

A.sysdumpdev -k 
B.sysdumpdev -L 
C.sysdumpdev -K 
D.sysdumpdev -P

单项选择题WhichofthefollowingcommandsisusedtodeterminetheroutethattheIPpacketstaketoanetworkhost?（）

A. route 
B. netstat 
C. iptrace 
D. traceroute

单项选择题Whichofthefollowingstatementsbestdescribeserrorlogging?（）

A.Syslogd creates error log entries in the system error log. 
B.The default error log is stored in /var/adm/ras/error.log. 
C.All entries in the error log are related to software problems. 
D.Error logging is automatically enabled during system initialization.