单选题When performing a full database disaster recovery with RMAN， in what order would you execute these steps？（）   a. Restore the control file from autobackups.  b. Run the RMAN restore and recover command.  c.Restore the database spfile from autobackups. 

第1题：

Redo log files are multiplexed in your database. The disk in which you have one of the redo log members is highly fragmented. In the process of defragmentation you lose the redo log member， which is not a member of the current group. How would you recover from the loss of the redo log member？（）

• A、SMON would automatically restore the lost file.
• B、You would need to restore the whole database from the last backup.
• C、You would need to restore the file from the last full database backup.
• D、You would need to use flashback technology to restore the lost redo log member.
• E、You would need to use Recovery Manager （RMAN） to restore the lost redo log member.
• F、You would need to restore the missing log file by copying one of the remaining files from the same group.

第2题：

When performing recover of a database in NOARCHIVELOG mode with RMAN， the target database must be in the （） state to restore the control file.

• A、OPEN
• B、IDLE
• C、MOUNT
• D、NOMOUNT

第3题：

第4题：

You are connected to Recovery Manager （RMAN） without a recovery catalog. There is no copy of the control file available. You want to restore the control file from an autobackup. To retrieve the autobackup，you need the database ID （DBID）.  In which two sources would you find the DBID？ （）

• A、the trace file
• B、the alert log file
• C、an RMAN session log file
• D、the server parameter file
• E、the formatted name of a control file autobackup

第5题：

David managed to accidentally delete the datafiles for database called DSL. He called Heber and Heber tried to help but he managed to delete the control files of the database. Heber called Bill and Bill saved the day. They are using a recovery catalog for this database.  What steps did Bill perform to recover the database and in what order？（）   a. Restored the control file with the RMAN restore controlfile command.  b. Mounted the DSL instance with the alter database mount command.  c. Restored the datafiles for the DSL database with the RMAN restore command. d. Opened the DSL database with the alter database open resetlogs command. e. Recovered the datafiles for the DSL database with the RMAN recover command. f. Started the DSL instance.  g. Connected to the recovery catalog with RMAN. 

• A、  a， b， c， d， e， f， g
• B、 b， c， d， g， f， e， a
• C、 g， f， a， b， c， e， d
• D、 c， a， d， b， f， e， g
• E、 g， f， a， b， e， c， d

第6题：

You have discovered that one of three control files has been lost. What steps would you follow to recover that control file？（）   a. Shut down the database.  b. Restore a control-file copy from backup media.  c. Use the create control file command to create a new control file.  d. Copy the backup control file into place.  e. Create a new copy of the control file from one of the surviving control files.  f. Recover the database using the recover database using backup control file command.  g. Start up the database. 

• A、a， b， f， g
• B、c， f， g
• C、a， d， f， g
• D、a， f， g
• E、a， e， g

第7题：

You are connected to Recovery Manager （RMAN） without a recovery catalog. There is no copy of the control file available. You want to restore the control file from an autobackup. To retrieve the autobackup， you need the database ID （DBID）. In which two sources would you find the DBID？ （）

• A、 the alert log file
• B、 the server parameter file
• C、 the formatted name of a control file autobackup
• D、 an RMAN session log file
• E、 the trace file

第8题：

Your multitenant container database (CDB) contains three pluggable database (PDBs). You find that the control file is damaged. You plan to use RMAN to recover the control file. There are no startup triggers associated with the PDBs. Which three steps should you perform to recover the control file and make the database fully operational?（）

• A、Mount the container database (CDB) and restore the control file from the control file auto backup.
• B、Recover and open the CDB in NORMAL mode.
• C、Mount the CDB and then recover and open the database, with the RESETLOGS option.
• D、Open all the pluggable databases.
• E、Recover each pluggable database.
• F、Start the database instance in the nomount stage and restore the control file from control file auto backup.

第9题：

You are maintaining the database in Oracle10g. You are performing an incomplete recovery by using RMAN because an important table， EMPLOYEE， is dropped and purged from the Recycle Bin. Which statement is NOT true regarding an incomplete recovery？（）

• A、 The target database must be in the MOUNT mode to ensure restoration of the datafiles.
• B、 You can restore the datafiles from the backup by using the RMAN utility only if the backups were taken using the RMAN utility.
• C、 The control file must be recreated.
• D、 The database must be opened with the RESETLOGS option.

第10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