ocp-154

QUESTION NO: 154
Which is not a valid way of backing up a control file?

A. Backing up the control file to trace
B. Copying the existing control file of the database to the backup location during a hot backup
C. Copying the existing control file of the database to the backup location during a cold backup
D. Creating a backup control file
E. Using the create controlfile command
Answer: B

哪一个不是一个有效的备份控制文件方式？

B.在热备份期间， 复制现有的数据库控制文件到备份位置。