多选题Which three activities are supported by the Data Recovery Advisor?（）AAdvising on block checksum failuresBAdvising on inaccessible control filesCAdvising on inaccessible block change tracking filesDAdvising on empty password filesEAdvising on invalid bl
题目
多选题
Which three activities are supported by the Data Recovery Advisor?（）
A
Advising on block checksum failures
B
Advising on inaccessible control files
C
Advising on inaccessible block change tracking files
D
Advising on empty password files
E
Advising on invalid block header field values