多项选择题
Which three features are provided by Oracle Net Services？ （）
A.Data encryption.
B.User authentication.
C.Transparent data conversion
D.Configuration and administration mechanisms.
E.Support for multiple network transport protocols.
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相关考题
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单项选择题
Whenyouareperformingmediarecover，andanarchivedlogislostorcorrupt，whichtypeofrecovermustyouperform？（）
A.Until SCN
B.Until time
C.Until cancel
D.Recover using backup control file. -
多项选择题
Whichtworolesorprivilegesmustyouhavetoexporttablesownedbyanotheruser？（）
A.CREATE USER
B.CREATE SESSION
C.CREATE ANY TABLE
D.IMP_FULL_DATABASE
E.EXP_FULL_DATABASE -
多项选择题
Inwhichthreecasesdoesacheckpointoccur？（）
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.
