425.Which of the following are included in a transportable tablespace set? (Choose all that apply.)
A. The datafiles that make up a self-contained group of tablespaces required for copy
B. The system tablespace
C. An export of the tablespace metadata
D. The spfile
E. All of the above
Answer: AC
A transportable tablespace set contains data files for a set of tablespaces and an export file containing structural metadata for the set of tablespaces. The export file is generated by Data Pump Export.
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原文：http://blog.csdn.net/adeline_pan/article/details/46861333