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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多项选择题
IdentifythreekeyfeaturesofASM.（）
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
You have 100 segments in the USERS tablespace. You realize that the USERS tablespace is running low on space. You can use Segment Advisor to （）
A. identify the segments that you should shrink
B. modify the storage parameters for the tablespace
C. automatically shrink the segments with unused space
D. check the alerts generated for the tablespace that is running low on space -
单项选择题
The Automatic Database Diagnostic Monitor （ADDM） analysis runs every 60 minutes on your database. Your database is facing a series of interrelated problems over a period of two hours. You need to ensure that the ADDM analysis is run over a time span of two hours in future. What would you do？（）
A. Create two custom ADDM tasks.
B. Modify the AWR snapshot time interval to two hours.
C. Create a new scheduler window for a time period of two hours.
D. Modify the Automatic Workload Repository （AWR） snapshot retention period to two hours.
