有如下类定义：class Point{private：static int how_many；}；______how_many=0；要初始化Point类的

A. The execution of the script fails because multiple channels cannot coexist.

B. The script is executed and both the channels are used for the script execution.

C. The new channel, CHI, is Ignored because a channel has been configured already.

D. ration parameter DC1 is overridden because a new channel is allocated in RMAN RUN block.

schema owned by the user RCO11. The INST1 database contains an Oracle Database version 10.1 catalog schema owned by the user RCAT10.You want the RMAN to import metadata for database IDs 1423241 and 1423242, registered in RCAT10, into the recovery catalog owned by RCO11. You also want to deregister them from the catalog after import.You executed the following commands to achieve this:What happens if the RCO11 catalog has scripts with the same name as that of the scripts in RCAT10 catalog？（）

A. The scripts in the RCO11 catalog are overwritten.

B. RMAN renames the local stored scripts in the RCO11 catalog.

C.The RMAN session in which the command is executed aborts.

D. RMAN renames the global scripts that are imported from the RCAT10 catalog.

schema owned by the user RCO11. The INST1 database contains an Oracle Database version 10.1 catalog schema owned by the user RCAT10.You want the RMAN to import metadata for database IDs 1423241 and 1423242, registered in RCAT10, into the recovery catalog owned by RCO11.You executed the following RMAN commands:RMAN> CONNECT CATALOG rco11/password@catdbRMAN> IMPORT CATALOG rcat10/oracle@inst1;What happens when you execute the above commands？（）

A. They deregister all databases registered in the RCAT10 catalog.

B. They import metadata for all registered databases in the RCAT10 database.

C. They register all the RCAT10-catalog registered databases in the RCO11 catalog.

D. They overwrite all stored scripts in the RCO11 catalog with the same name as that in the RCAT10 catalog.

when backup commands are running in server sessions:What could have helped you to correlate server sessions with channels？（）

A. Implement RMAN multiplexing

B. Set the DEBUG ON in the RMAN script

C. Specify the command ID in the RMAN script

D. Use a tag with the RMAN BACKUP command

In your database, the flash recovery area (FRA) is configured as the default for RMAN backups. You executed the following commands to configure the settings in RMAN:Which statement is true about the outcome？（）

A. Only one channel is allocated and the backup is created in the flash recovery area

B. Only one channel is allocated and the backup is created in the destination specified for channel

C. Two channels are allocated and backup sets are created in the destinations specified for channels 1 and 2

D. Three channels are allocated and backup sets are created in the destinations specified for channels 1, 2, and FRA

for the database instance. To repair the failure, you executed the following as the first command in the RMAN session:RMAN> REPAIR FAILURE;Which statement describes the consequence of the command？（）

A. The command performs the recovery and closes the failures.

B. The command only displays the advice and the RMAN script required for repair.

C. The command produces an error because the ADVISE FAILURE command has not been executed before the REPAIR FAILURE command.

D. The command executes the RMAN script to repair the failure and removes the entry from the Automatic Diagnostic Repository (ADR).

In your database, the flash recovery area (FRA) is configured as the default for RMAN backups. You executed the following commands to configure the settings in RMAN:RMAN> CONFIGURE DEVICE TYPE disk PARALLELISM 2 BACKUP TYPE TO BACKUPSET;RMAN> CONFIGURE CHANNEL 1 DEVICE TYPE disk FORMAT ‘/home/oracle/disk1/%U‘;RMAN> CONFIGURE CHANNEL 2 DEVICE TYPE disk FORMAT ‘/home/oracle/disk2/%U‘;You issue the following RMAN command to backup the database:RMAN> RUN2> {3> ALLOCATE CHANNEL ch1 DEVICE TYPE disk;4> BACKUP DATABASE;5> }Which statement is true about the outcome？（）

A. Only one channel is allocated and the backup is created in the flash recovery area

B. Only one channel is allocated and the backup is created in the destination specified for channel 1

C. Two channels are allocated and backup sets are created in the destinations specified for channels 1 and 2

D. Three channels are allocated and backup sets are created in the destinations specified for channels 1, 2, and FRA

schema owned by the user RCO11. The INST1 database contains an Oracle Database version 10.1 catalog schema owned by the user RCAT10.You want the RMAN to import metadata for database IDs 1423241 and 1423242, registered in RCAT10, into the recovery catalog owned by RCO11.You executed the following commands:Which two statements are true regarding the tasks accomplished with these commands？（）

A. They import all metadata from the RCAT10 catalog.

B. They unregister the database from the RCAT10 catalog.

C. They do not register the databases registered in the RCAT10 catalog.

D. They register all databases registered in the RCAT10 catalog.

A．A.show versio

B．B.show time

C．C.show this

D．D.show ru