多项选择题
A.Event Viewer gives more details on the failure.
B.The alert log file gives detailed information about the failure.
C.PMON rolls back the transaction and releases the locks.
D.SMON rolls back the transaction and releases the locks.
E.The transaction is rolled back by the next session that refers to any of the blocks updates by the failed transaction.
F.Data modified by the transaction up to the last commit before the abnormal termination is retained in the database.
单项选择题 YourbossatCertkiller.comwantsyoutoclarifyOracle10g.Whichconditioninyourdatabaseforcesyoutoperformonlyconsistentbackups？（）
多项选择题 You work as a database administrator for Certkiller .com. Users in the Certkiller PROD database complain about the slow response when accessing the database. In the Active Session Waiting： Configuration page you find that the majority of the wait time is for the redo log buffer.Further investigation using the Run Queue graph and operating system tools reveals that the redo log files are on the same disks， and that the disk I/O for the redo log files is the reason for the performance degradation. Which two actions would you take to gain performance？（）
单项选择题 You work as a database administrator for Certkiller .com. Redo log files are not multiplexed in your database. Redo log blocks are corrupted in group 2， and archiving has stopped. All the redo logs are filled and database activity is halted. Database writer has written everything to disk. Which command would you execute to proceed further？（）