单项选择题
A. using only the RMAN SWITCH command to set the new location for the data file
B. placing the database in the MOUNT state for the restore and recovery operations.
C. using an RMAN RUN block with the SET NEWNAME and then the SWITCH command.
D. configuring two channels: one for the restore operation and the other for the recovery operation
单项选择题 You want to create the Recovery Manager （RMAN） Virtual Private Catalog （VPC） to maintain a separation of responsibilities along with a consolidation of RMAN repository. Which condition must be met before you create the VPC？（）
单项选择题 Which options must you configure while performing an automated Tablespace Point-in-Time Recovery(TSPITR) by using Recovery Manager (RMAN)?（）
单项选择题 You are managing an Oracle Database 11g ASM instance with a disk group dg01 having three disks. One of the disks in the disk group becomes unavailable because of power failure. You issued the following command to change the DISK_REPAIR_TIME attribute from 3.6 hours to 5 hours： ALTER DISKGROUP dg01 SET ATTRIBUTE ’disk_repair_time’ = ’5h’； To which disks in the disk group will the new value be applicable？（）