多项选择题
A.Data encryption. B.User authentication. C.Transparent data conversion D.Configuration and administration mechanisms. E.Support for multiple network transport protocols.
Whenyouareperformingmediarecover，andanarchivedlogislost...
单项选择题When you are performing media recover， and an archived log is lost or corrupt， which type of recover must you perform？（）
A.Until SCN B.Until time C.Until cancel D.Recover using backup control file.
Whichtworolesorprivilegesmustyouhavetoexporttablesowned...
多项选择题Which two roles or privileges must you have to export tables owned by another user？（）
A.CREATE USER B.CREATE SESSION C.CREATE ANY TABLE D.IMP_FULL_DATABASE E.EXP_FULL_DATABASE
Inwhichthreecasesdoesacheckpointoccur？（）A.Every three m...
多项选择题In which three cases does a checkpoint occur？ （）
A.Every three minutes. B.When a log switch occurs. C.When forces by an administrator. D.When a tablespace is taken offline normal. E.When the redo buffer is one-third full.
