200.Which operation requires that you create an auxiliary instance manually before executing the
operation? (Choose all that apply.)
A. Backup-based database duplication.
B. Active database duplication.
C. Tablespace point-in-time recovery.
D. No operation requires the creation of an auxiliary instance.
Answer: AB
答案解析：
参考：http://blog.csdn.net/rlhua/article/details/13509067
