99. Which two statements are true regarding Oracle Data Pump? (Choose two.)
A.EXPDP and IMPDP are the client components of Oracle Data Pump.
B.DBMS_DATAPUMP PL/SQL packages can be used independently of the Data Pump clients.
C.Oracle Data Pump export and import operations can be performed only by users with the SYSDBA
privilege.
D.Oracle Data Pump imports can be done from the export files generated in the export utility of previous
versions.
E.EXPDP and IMPDP use the procedures provided by DBMS_METADATA to execute export and import
commands.
Answer: AB
答案解析：
参考：http://docs.oracle.com/cd/E11882_01/server.112/e22490/dp_overview.htm#SUTIL802
Data Pump Components
Oracle Data Pump is made up of three distinct parts:
-
The command-line clients,
expdpandimpdp -
The
DBMS_DATAPUMPPL/SQL package (also known as the Data Pump API) -
The
DBMS_METADATAPL/SQL package (also known as the Metadata API)
The Data Pump clients, expdp and impdp, invoke the Data Pump Export utility and Data Pump Import utility, respectively.
The expdp and impdp clients use the procedures provided in the DBMS_DATAPUMP PL/SQL package to execute export and import commands, using the parameters entered at the command
line. These parameters enable the exporting and importing of data and metadata for a complete database or for subsets of a database.
When metadata is moved, Data Pump uses functionality provided by the DBMS_METADATA PL/SQL package. The DBMS_METADATA package provides a centralized facility for the extraction, manipulation, and re-creation
of dictionary metadata.
The DBMS_DATAPUMP and DBMS_METADATA PL/SQL packages can be used independently of the Data Pump clients.