053-567

You have discovered that one of three control files has been lost. What steps would you follow to recover that control file?
A. Shut down the database.
B. Restore a control-file copy from backup media.
C. Use the create control file command to create a new control file.
D. Copy the backup control file into place.
E. Create a new copy of the control file from one of the surviving control files.
F. Recover the database using the recover database using backup control file command.
G. Start up the database.
A. a, b, f, g
B. c, f, g
C. a, d, f, g
D. a, f, g
E. a, e, g

　　If you lose one or more control files but at least one remains,you should shut down the database.Then use any remaining control file as the source to create new control-file copies for the control files that were lost.Then restart the database.No recovery is required in this situation.