Which two statements are true regarding the Oracle Data Pump export and import operations?
(Choose two.)
A.You cannot export data from a remote database.
B.You can rename tables during an import operation.
C.You can overwrite existing dump files during an export operation.
D.You can compress the data during export but not the metadata because it is not supported.
可以从远程导出，使用 network_link 参数
可以压缩元数据和数据，参数 compression 的选项有 ALL，DATA_ONLY，METADATA_ONLY 和 NONE