单项选择题
You enable block change tracking. You issue the following command: BACKUP INCREMENTAL LEVEL 0 DATABASE;
The next day, you issue the following command:
BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE;
Which statement about the use of the change tracking file is true?（）
A. RMAN reads the block change tracking file only when it performs the incremental level 0 backup.
B. RMAN reads the block change tracking file when it performs both incremental backups.
C. RMAN reads the block change tracking file only when it performs the incremental level 1 backup.
D. RMAN does not read the block change tracking file when it performs either incremental backup.
相关考题
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单项选择题
You have three production databases, HRDB, FINDB, and ORGDB, that use the same ASM instance. At the end of the day, while all three production database instances are running, you execute the following command on the ASM instance : SQL> shutdown immediate; What is the result of executing this command?（）
A. The ASM instance is shut down, but the other instances are still running.
B. It results in an error because other database instances are connected to it.
C. All the instances, including the ASM instance, are shut down in the IMMEDIATE mode.
D. HRDB, FINDB, and ORGDB instances are shut down in the ABORT mode and the ASM instance is shut down in the IMMEDIATE mode. -
多项选择题
Identify three key features of ASM.（）
A. file striping
B. allocation unit mirroring
C. automatic disk rebalancing
D. automatic file size increment
E. automatic undo management -
单项选择题
As shown in the diagram, in-memory statistics are transferred to the disk at regular intervals. Which background process performs this activity?（）
A. CKPT
B. SMON
C. MMON
D. DBWR
