單項(xiàng)選擇題

You are performing backup and recovery operations by using RMAN. You are using a recovery catalog for the RMAN repository. You are planning to migrate to ASM disk storage to enable new disks to be added to the database without shutting down the database.
Which information is NOT required during the migration process？（）

A. Database Identifier （DBID）
B. names and location of datafiles
C. names and location of control files
D. names and location of online redo log files

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單項(xiàng)選擇題

You are the Database Administrator for WonderWeb， which has recently acquired a media company TXGlobal. You have been assigned the task to migrate all the database applications of TXGlobal to the database server of WonderWeb. To accommodate more database applications， you need to add disks to the existing disk group. Whenever you add or remove disks from the disk group， Automatic Storage Management （ASM） rebalancing distributes the data evenly across all the disks of the disk group. Which background process performs this actual rebalancing activity， resulting in the movement of data extents in the disk groups？（）

A. ASMB
B. ARBn
C. RBAL in the ASM instance
D. RBAL in the database instance

單項(xiàng)選擇題

Consider the following configuration：
/devices/diskP1 is a member of disk group grp1.
/devices/diskP2 is a member of disk group grp1.
/devices/diskP3 is a member of disk group grp1.
/devices/diskP4 is a candidate disk.
/devices/diskQ1 is a member of disk group grp2.
/devices/diskQ2 is a member of disk group grp2.
/devices/diskQ3 is a member of disk group grp2.
/devices/diskQ4 is a candidate disk.
Which command will add the disk /devices/diskP4 to the disk group， grp1？（）

A. ALTER DISKGROUP grp1 ADD DISK ’/devices/diskP1’， ADD DISK ’/devices/diskP4’；
B. ALTER DISKGROUP grp1 ADD DISK ’/devices/disk*4’；
C. ALTER DISKGROUP grp1 ADD DISK ’/devices/diskP*’；
D. ALTER DISKGROUP grp1 ADD DISK ’/devices/diskQ*’， ADD DISK ’/devices/diskP*’；