单项选择题

Which tasks can be accomplished using the DBMS_LOB. SETOPTIONS procedure?（）

A. only encryption and compression settings for all SecureFile LOBs
B. only encryption and deduplication settings for only SecureFile CLOBs
C. deduplication, encryption, and compression settings for all SecureFile LOBs
D. deduplication, encryption, and compression settings only for SecureFile CLOBs

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单项选择题

An index called ORD_CUSTNAME_IX has been created on the CUSTNAME column in the ORDERS table using the following command:
SQL>CREATE INDEX ord_custname_ix ON orders(custname);
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A. disabling the index
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You are managing an Oracle Database 11g instance.You want to create a duplicate database for testing purpose. What are the prerequisites for performing the active database duplication?（）

A. The source database backup must be copied over the net for test database.
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