单选题You are maintaining your database in Oracle10g. You are not using the recovery catalog to maintain the backup metadata information. You want to enable the reusable section of the control file to expand itself if the oldest record cannot be reused， and 

第1题：

You are using the control file to maintain information about the database backups that are being performed by Recovery Manager (RMAN). Identify two scenarios is which you must have a recovery catalog.（）

• A、To store the backup information of multiple database
• B、To restrict the amount of space that is used by the backups
• C、To maintain a backup for a certain time is set by the CONTROL_FILE_RECORD_KEEP_TIME parameter.
• D、To list the data files that were in a target database at a given time by using the AT option of REPORT SCHEMA command.

第2题：

You are using a recovery catalog to maintain Recovery Manager （RMAN） backup information for your production database. You have registered your production database and are performing regular backups. Because of a new requirement you have added a few new tablespaces to your production database and you want them to be included in backups.  Identify two options for completing this task.（）

• A、 Reregistering the target database in recovery catalog
• B、 Transporting the new tablespaces to the recovery catalog database
• C、 Syncronizing the recovery catalog with the target database control file
• D、 Performing a fresh backup of the target database to include the new data files in the catalog database

第3题：

第4题：

It is a holiday and no transactions are being performed on the database. You took a consistent backup of your database without using Recovery Manager （RMAN）. How would you make use of this consistent backup in RMAN？（）

• A、cannot be used in RMAN
• B、by starting up the database again
• C、by using the CATALOG command of RMAN
• D、by using the RECOVER CATALOG command in RMAN
• E、by re-creating the target control file to rebuild the RMAN repository

第5题：

You are maintaining your production database in Oracle10g. You want the circular reuse records in the control file of the target database to be reused as required.   Which value will you set for the CONTROL_FILE_RECORD_KEEP_TIME initialization parameter？（）

• A、 0
• B、 1
• C、 NONE
• D、 DEFAULT

第6题：

Your database runs in NOARCHIVELOG mode， and is backed up every night using RMAN scripts. However， last night your assistant DBA performed a manual operating system backup， instead of running the scripts. Today your database crashed and you now want to use the backups from last night. What do you need todo？（）

• A、You need to perform the restore and recover operations manually, because the backup was made manually. 
• B、First you need to resynchronize the catalog with the control file, and then you can use RMAN to recover the database. 
• C、First you need to add the backup to the catalog using the CATALOG command, and then you can use RMAN to recover the database. 
• D、You can just use RMAN and recover the database, because RMAN automatically updates the catalog with the backup information. 

第7题：

You are maintaining your database in Oracle10g. You are not using the recovery catalog to maintain the backup metadata information. You want to enable the reusable section of the control file to expand itself if the oldest record cannot be reused， and whenever a new record is added to the reusable section of the control file. Which value will you set for the CONTROL_FILE_RECORD_KEEP_TIME parameter？（）

• A、 Zero
• B、 One or more
• C、 NONE
• D、 DEFAULT

第8题：

You have backed up your database twice without connecting to the recovery catalog. What command do you issue to transfer the control-file metadata to the recovery catalog？（）

• A、 synch catalog
• B、 resync catalog
• C、 replicate catalog
• D、 update catalog
• E、 restore catalog

第9题：

You are maintaining your database in Oracle10g. You are not using the recovery catalog to maintain the backup information of your database. Which file can be used as a repository to store information regarding the RMAN backup？（）

• A、 online redo log files
• B、 alert log files
• C、 control file
• D、 datafiles associated with the SYSTEM tablespace

第10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.