单项选择题
A file named "core" exists in the current directory. Which of the following commands should be used to determine what created the "core" file?（）
A. dump -t core
B. strings core
C. trace -a core
D. crash core /unix_up
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To examine the Exhibit, press the Exhibit button. Using the information provided in the exhibit, which of the following options indicates the date and time that the file system ran out of room?（）
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Ausertriestoftpa3gigabytefiletoanAIXmachineatcertaintimesduringtheday.Thefiletransferfailsatexactly2,147,483,584byteseachtime.AllofthefollowingareprobablecausesofthefailuresEXCEPT:（）
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