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QUESTION 177
Which of the following files cannot be backed up by RMAN? (Choose all that apply.)
A. Database datafiles
B. Control files
C. Online redo logs
D. Database pfiles
E. Archived redo logs
Answer: CD
同182题：http://blog.csdn.net/rlhua/article/details/18911801
Explanation/Reference:
Section: Backup, Recovery & Recovery Manager (RMAN)
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