A. Oracle Net ManagerB. Listener Control utilityC. Data……

多项选择题WhichtwostatementsaretrueaboutencryptingRMANbackup？（）

A. The transparent encryption of backups uses the encryption wallet
B. The database uses the same encryption key for every encrypted backup
C. The password encryption of backups only uses the password while creating and restoring backup
D. If transparent encryption is configured， you cannot use the SET ENCRYPTION BY PASSWORD  command to make password-protected backups

单项选择题Whichoptionisbestpracticeforcreatingarecoverycatalogownerinthecatalogdatabase？（）

A. Granting UNLIMITED QUOTA on the SYSTEM tablespace to the owner
B. Allocating the SYSTEM tablespace as the default tablespace and granting the SYSDBA privilege to the user
C. Creating a new tablespace，allocating this as the default， and granting UNLIMITED QUOTA on this tablespace to the user
D. Allocating the SYSAUX tablespace as the default tablespace and granting UNLIMITED QUOTA on this tablespace to the user

单项选择题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

单项选择题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 data file in a different location while resto ing 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

单项选择题WhichoptionsmustyouconfigurewhileperforminganautomatedTablespacePoint-in-TimeRecovery（TSPITR）byusingRecoveryManager（RMAN）？（）

A. New channels for restore and recovery tasks
B. New name for the data files of the tablespace
C. Auxiliary name for the data files of the tablespace
D. Auxiliary destinations for an auxiliary set of data files