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1Z0-052

单项选择题

Note the following points describing various utilities in Oracle Database 11g： 
1：It enables the high-speed transfer of data from one database to another. 
2：It provides a complete solution for the backup， restoration， and recovery needs of the entire database. 
3：It enables the loading of data from an external file into an Oracle database. 
4：It provides a tape backup management for the Oracle ecosystem. Which point describes Oracle Secure Backup（）

A.1
B.2
C.3
D.4
E.1，2，and 4
F.1，2，3，and 4

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