单项选择题 An administrator attends a management meeting to further explain a problem that occurred Several weeks ago. A quick review of existing log files reveals that all logs from that period are gone.  Which logfile may be reviewed for specific event detail at this late date？（）

单项选择题 Ifakill-9isperformedontheclstrmgrESprocess，thedefaultactionistohaltthesystem.Tochangethedefaultactiontodosomethingotherthenhaltingthesystem，whichofthefollowingfilesmustbemodified？（）

单项选择题 Company.com recently updated the programs used in an HACMP pre-event. The procedure Involved coping the new code over the old code in the appropriate directory on one of the nodes as indicated by the HACMP event entry. The cluster was synchronized.  During a fallover test，the backup system did not behave as expected.What is the most likely problem？（）