多项选择题

A.Data encryption.B.User authentication.C.Transparent d……

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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单项选择题Whenyouareperformingmediarecover，andanarchivedlogislostorcorrupt，whichtypeofrecovermustyouperform？（）

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B.Until time
C.Until cancel
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多项选择题Whichtworolesorprivilegesmustyouhavetoexporttablesownedbyanotheruser？（）

A.CREATE USER
B.CREATE SESSION
C.CREATE ANY TABLE
D.IMP_FULL_DATABASE
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A.Every three minutes.
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C.When forces by an administrator.
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E.When the redo buffer is one-third full.

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A.A direct-load insert can be invoked by suing the APPEND hint.
B.Inserting using the NOLOGGING option is the default for direct-load inserts.
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A.HTTP
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