单选题Your production database is running in archivelog mode and you are using recovery manager (RMAN) with recovery catalog to perform the database backup at regular intervals. When you attempt to restart the database instance after a regular maintenance ta

第1题：

The database is running in the ARCHIVELOG mode. It has three redo log groups with one member each. One of the redo log groups has become corrupted. You have issued the following command during the recovery of a damaged redo log file：   ALTER DATABASE CLEAR UNARCHIVED LOGFILE GROUP 3；   Which action should you perform immediately after using this command？（）  

• A、 You should perform a log switch
• B、 You should make a backup of the database
• C、 You should switch the database to the NONARCHIVELOG mode
• D、 You should shut down the database instance and perform a complete database recovery

第2题：

In Recovery Manager (RMAN), you are taking image copies of the data files of your production database and rolling them forward at regular intervals. You attempt to restart your database. After a regular maintenance task, you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the data file by using the image copy. Because a media failure caused the data file to be damaged, you want to place the d ata file in a different location while restoring the file. Which option must you consider for this task?（）

• A、using only the RMAN SWITCH command to set the new location for the data file
• B、placing the database in the MOUNT state for the restore and recovery operations.
• C、using an RMAN RUN block with the SET NEWNAME and then the SWITCH command.
• D、configuring two channels: one for the restore operation and the other for the recovery operation

第3题：

While setting up an Oracle database for one of your critical applications， you want to ensure that the database is backed up at regular intervals without your intervention.What should you do to achieve the objective？（）

• A、configure the database to run in ARCHIVELOG mode
• B、configure the Flash Recovery Area to enable automatic database backup
• C、schedule the database backup using DBMS_JOB package after creating the database
• D、schedule the database backup using Recovery Manager （RMAN）commands after creating the database
• E、schedule the database backup using Database Configuration Assistant （DBCA）while creating the database

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：

In your database， all the tablespaces are locally managed. You started Recovery Manager （RMAN） using recovery catalog and restored the control file by using the following command： RMAN> RESTORE CONTROLFILE;  Which two operations do you need to perform after restoring the control file from backup？（）

• A、shut down and restart the instance
• B、add new tempfiles to the temporary tablespaces after recovery
• C、perform a media recovery and open the database with the RESETLOGS option
• D、perform a media recovery and bring the database to NOARCHIVELOG mode

第6题：

You are using a recovery catalog to maintain Recovery Manager (RMAN) backup information for yourproduction 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 youwant them to be included in backups.Identify two options for completing this task. （）(Choose two.)

• 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7题：

In Recovery Manager （RMAN）， you are taking image copies of the datafiles of your production database and rolling them forward as regular intervals. You attempt to restart your database instance after a regular maintenance task， you realize that one of the data files that belongs to the USERS tablespace is damaged and you need to recover the datafile by using the image copy. You could perform the following steps to accomplish this：   1） Mount the database  2） Take the data file offline  3） Bring the data file online  4） Use the RMAN SWITCH TO command to switch the image copy  5） Apply the archived redo logs  6） Open the database  7） Use the RMAN RESTORE TO command to switch to the image copy   Which two options illustrate the correct sequence of steps that you could follow？（）

• A、 2， 6， 4， 5， 3
• B、 1， 2， 4， 5， 3， 6
• C、 1， 2， 4， 6， 3
• D、 1， 2， 7， 5， 3， 6

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第13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14题：

Your production database is running in archivelog mode and you are using recovery manager （RMAN） with recovery catalog to perform the database backup at regular intervals. When you attempt to restart the database instance after a regular maintenance task on Sunday， the database fails to open displaying the message that the data file belonging to the users tablespace are corrupted.   The steps to recover the damaged data files are follows：   1. Mount the database  2. Open the database  3. Recover the data file  4. Restore the data file  5. Make the data file offline  6. Make the data file online   Which option identifies the correct sequence that you must use to recover the data files？（）

• A、 2，4，3
• B、 1，4，3，2
• C、 2，5，4，3，6
• D、 5，2，4，3，6
• E、 1，5，4，3，6，2

第15题：

Your database is running in the ARCHIVELOG mode. You have configured RMAN for backup and recovery operations. You execute the following command from the RMAN prompt：   RMAN> CONFIGURE CONTROLFILE AUTOBACKUP ON；   After executing this command， in which of the following cases will RMAN make an auto-backup of the control file？ （）

• A、 when you change the name of a datafile
• B、 when you drop a table from the database
• C、 when you take an export of the database
• D、 when you back up the database using OS utilities
• E、 when you issue an ALTER SYSTEM SWITCH LOGFILE statement
• F、 when you issue a BACKUP command from inside the RMAN run block

第16题：

You are using recovery Manager (RMAN) with a recovery catalog to backup up your production database. The backups and the archived redo log files are copied to a tape drive on a daily basis. The database was open and transactions were recorded in the redo logs. Because of fire in the building you lost your servers having the production database and the recovery catalog database. The archive log files generated after the last backup are intact on one of the remote locations. While performing a disaster recovery of the production database what is the next step that you must perform after restoring the data files and applying archived redo logs?（）

• A、Open the database in NORMAL mode
• B、Open the database in read-only mode
• C、Open the database in RESTRICTED mode
• D、Open the database with the RESETLOGS option

第17题：

You executed the following command in Recovery Manager （RMAN） to perform a backup of the DETTBS tablespace： RMAN> BACKUP TABLESPACE DETTBS；  Under which conditions would this command execute successfully？ （）

• A、 The database is in NOMOUNT state.
• B、 The database is in NOARCHIVELOG mode and the tablespace is online.
• C、 The database is in NOARCHIVELOG mode and the tablespace is offline.
• D、 The database is in ARCHIVELOG mode and the tablespace is offline.
• E、 The database is in ARCHIVELOG mode and the tablespace is online.

第18题：

You administer an Oracle Database 10g and a third-party database. You use Recovery Manager （RMAN） to perform backup and recovery operations. You have configured a recovery catalog to act as an RMAN repository. To which of the following databases can you NOT connect using the RMAN CONNECT command？（）

• A、 target database
• B、 auxiliary database
• C、 third-party database
• D、 recovery catalog database

第19题：

You work as a database administrator for Supportcenter.cn. You are using Recovery Manager （RMAN） for backup and recovery of your database. You executed the delete command in RMAN to delete a backup of a tablespace. Which statement is true in this scenario？（）

• A、The backup status will be marked expired in RMAN recovery catalog.
• B、The backup status will be marked deleted in RMAN recovery catalog after you execute the crosscheck command.
• C、The backup will be deleted physically from the OS （Operating system）and the backup information is removed from the recovery catalogl
• D、The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）.
• E、The backup status will be marked deleted and you must delete the backup file manually from the OS （Operating system）， if you are not using Oracle Managed Files （OMF）.

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