多项选择题
You are managing the APPPROD database as a DBA. You plan to duplicate this database in the same system with the name DUPDB.
You issued the following RMAN commands to create a duplicate database:
Which three are the prerequisites for the successful execution of the above command?（）
A. The source database should be open
B. The target database should be in ARCHIVELOG mode if it is open
C. RMAN should be connected to both the instances as SYSDBA
D. The target database backups should be copied to the source database backup directories
E. The password file must exist for the source database and have the same SYS user password as the target
相关考题
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多项选择题
Which two statements are true regarding an Automatic Storage Management (ASM) instance? （）
A. As ASM instance mounts an ASM control file
B. An ASM instance uses the ASMB process for rebalancing of disks within a disk group
C. Automatic Memory Management is enabled in an ASM instance even when the MEMORY_TARGET parameter is not set explicitly
D. An RDBMS instance gets connected to an ASM instance using ASMB as a foreground process when the database instance is started -
单项选择题
Which statement is true regarding the VALIDATE DATABASE command?（）
A. It checks the database for intrablock corruptions only.
B. It checks for block corruption in the valid backups of the database.
C. It checks the database for both intrablock and interblock corruptions.
D. It checks for only those corrupted blocks that are associated with data files. -
单项选择题
Which statement about Automatic Memory Management with Oracle 11g is true?（）
A. You cannot specify MEMORY_TARGET if you explicitly specify SGA_TARGET or PGA_AGGREGATE_TARGET values that are greater than zero in your parameter file.
B. Oracle can reallocate memory between the SGA and PGA automatically as needed.
C. To use Automatic Memory Management, you must explicitly set both the MEMORY_TARGET and MEMORY_MAX_TARGET parameters in your parameter file.
D. You can set the MEMORY_TARGET parameter to a maximum value of the current SGA size plus the current PGA size.
