577.What methods are available to recover lost control files? (Choose all that apply.)
A. Backup control file.
B. Emergency control file.
C. The create controlfile command.
D. The restore controlfile SQL*Plus command.
E. No backup is required. The database will re-create the control file when it is discovered to be lost.
Answer: CD
答案解析：
丢失一个控制文件就OS级别cp
全部丢失就restore或者重新创建。