多选题In RMAN， when the RESYNC CATALOG command is issued， in which two situations does the command file actually perform synchronization？（）AAfter the COPY command.BAfter adding a data file in the target database.CAfter adding a tablespace in the target datab

第1题：

You want to take the backup of the USERS tablespace. It has a single data file of 900 MB. You have tape drives of 300 MB each. The SBT channel is configured for Recovery Manager (RMAN). To accomplish the backup, you issued the following RMAN command: RMAN> BACKUP SECTION SIZE 300M TABLESPACE users; Which two statements are true about the execution of the above command? （）(Choose two.)

• A、The backup piece size will be limited to 300 MB
• B、The RMAN uses multiplexing to perform backup
• C、The operation is accomplished using the default channel available
• D、The RMAN parallelizes the backup although the parallelism is not set for a channel

第2题：

You executed the following command in Recovery Manager （RMAN）：  RMAN> RESTORE CONTROLFILE；  Which operation must you perform before this command is executed？（） 

• A、back up the control file to trace
• B、bring database to the MOUNT state
• C、open a connection to the RMAN recovery catalog， which contains the RMAN metadata for the target database
• D、set the database ID （DBID）， but only if the DB_NAME parameter associated with the target database is unique in the recovery catalog

第3题：

In Recovery Manager （RMAN）， you have set control file autobackup to ON by using the following command：  CONFIGURE CONTROLFILE AUTOBACKUP ON;  Which two events would cause the control file to be backed up automatically？ （）

• A、a tablespace is taken offline
• B、the database instance is restarted
• C、a new data file is added to an existing tablespace
• D、a successful backup is recorded in the RMAN repository
• E、the RMAN connection is disconnected from the target database

第4题：

In Recovery Manager （RMAN）， you have set control file autobackup to ON by using the following command： CONFIGURE CONTROLFILE AUTOBACKUP ON； Which two events would cause the control file to be backed up automatically？ （）

• A、 A tablespace is taken offline.
• B、 The database instance is restarted.
• C、 A new data file is added to an existing tablespace.
• D、 A successful backup is recorded in the RMAN repository.
• E、 The RMAN connection is disconnected from the target database.

第5题：

You observe that the senior database administrator always uses the following command when connecting to Recovery Manager （RMAN）， and then starts executing commands to backup the database files：  $ rman target /  What would be the effect of this command？（）

• A、RMAN would use the current operating system location to place the backup.
• B、RMAN would use the control file of the target database to maintain the backup.
• C、RMAN would use the recovery catalog of the target database to maintain the backup.
• D、RMAN would use the control file of the target database to maintain the backup metadata. 
• E、RMAN would use the recovery catalog of the target database to maintain the backup metadata.

第6题：

You execute a command to resize a data file， sales.dbf， of size 200 MB in your database： ALTER DATABASE DATAFILE ’/remorse/sales.dbf’ RESIZE 150M；  Which statement is true about this command（）

• A、The command must be issued in MOUNT state.
• B、The command succeeds only if the data file is offline.
• C、The command must be issued when the database is in the archivelog mode.
• D、The command succeeds if no extent in the tablespace is currently allocated above the 150 MB boundary of the file.

第7题：

If you back up a database without connecting to the recovery catalog， which operations will cause the recovery catalog to be updated？（）

• A、 The next time you back up the database when you are also connected to the recovery catalog and the target database
• B、 The next time you are connected to the target database and the recovery catalog database and issue the resync command
• C、 The next time you connect RMAN to just the recovery catalog
• D、 The next time you connect to the recovery catalog and the target database with RMAN
• E、 Connecting to the recovery catalog and issuing the resync all databases command

第8题：

In RMAN， when the RESYNC CATALOG command is issued， in which two situations does the command file actually perform synchronization？（）

• A、After the COPY command.
• B、After adding a data file in the target database.
• C、After adding a tablespace in the target database.
• D、After adding a tablespace in the catalog database.
• E、After dropping a data file in the catalog database.
• F、After running SQL Loader to load a large amount of data.

第9题：

Which statement about using RMAN stored scripts is true？（）  

• A、 To create and execute an RMAN stored script，you must use a recovery catalog.
• B、 When executing a stored script and a command fails，the remainder of the script is executed，and a message is written to the alert log file.
• C、 RMAN stored scripts can always be executed against any target database that is registered in the recovery catalog.
• D、 When you execute a stored script，it always executes using the persistent channel settings previously set with the CONFIGURE command.

第10题：

You want to implement the backup and recovery strategy in your database using Recovery Manager （RMAN）. You have chosen the control file of the target database for the RMAN repository.  Which command-line RMAN command would you use to establish a local connection between RMAN and the RMAN repository if your database is using password file authentication？（）

• A、 rman TARGET / NOCATALOG
• B、 rman TARGET sys/password
• C、 rman TARGET sys/password AS SYSDBA
• D、 rman TARGET sys/password@db_name CATALOG rman_user/rman_password@rcat