多选题Which two features of RMAN would must likely influence your decision to incorporate RMAN into your backup and recover strategy， if your most important requirement is to reduce the time ofrecovery？（）ARMAN’s powerful command language.BRMAN backups can be

第1题：

第2题：

The backup retention policy is configured as RECOVERY WINDOW 2. You executed the following command in Recovery Manager （RMAN） against your database： RMAN> REPORT OBSOLETE； What would you see in the output？（）

• A、 a list of all those files that have been deleted in the last two days
• B、 a list of all those files that have been recovered within the last two days
• C、 a list of all the expired backups and copies
• D、 a list of backups and copies that are outside the range covered by the current retention policy

第3题：

第4题：

When you are allowing RMAN to backup your archived redo log files，how does RMAN know which archived redo logs to back up from your archive log destination？（）

• A、RMAN keeps a list of archive logs in a text file.
• B、The DBA must manually tell RMAN which archive logs to backup.
• C、RMAN has access to target control file and/or catalog information.
• D、RMAN looks at the ARCHIVE_LOG_DEST parameter of your target database and backs up all archive logs found.

第5题：

As A DBA， which of the following methods can you use to make a backup of your table？（）

• A、Recover Manager （RMAN） utility
• B、Import utility
• C、Export utility
• D、O/S backup command

第6题：

第7题：

Using the LIST command in Recovery Manager (RMAN), which two pieces of information in the RMANrepository can be listed?（）

• A、stored scripts in the recovery catalog
• B、backups that can be deleted from disk
• C、backup sets and image copies are obsolete
• D、backups that do not have the AVAILABLE status in the RMAN repository RMAN

第8题：

第9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10题：

Consider the following scenario for your database: - Backup optimization is enabled in RMAN. - The recovery window is set to 7 days in RMAN. - The most recent backup to disk for the TOOLS tablespace was taken on November 3, 2007. - The TOOLS tablespace is read-only since November 4, 2007. On November 23, 2007, you issue the RMAN command to back up the database to disk. Which statement is true regarding the backup of the TOOLS tablespace?（）

• A、The RMAN backup fails because the TOOLS tablespace is read-only
• B、The RMAN skips the backup of the tablespace because backup optimization is enabled
• C、The RMAN makes backup because optimization can be enabled only for backups to disk
• D、The RMAN makes the backup because no backup of the tablespace exists within the seven day window