单项选择题
A.a， b， c， d， e
B.e， d， a， b， c
C.a， c， b， d， e
D.d， b， c， a， e
E.a， c， b， e， d
单项选择题 WhichisthecorrectcommandtoputthedatabaseinARCHIVELOGmode？（）
多项选择题 WhatarethedifferentloggingmodesavailableinOracleDatabase11g？（）
单项选择题 You backed up the database at 8 a.m. today using an online backup. Accounting made a large change to the underlying data between 10 a.m. and noon. Which of the following actions would ensure that the changes could be recovered using the 8 a.m. backup？（）