our database is in the MOUNT state and you execute the follo

第1题：

Your boss at Supportcenter.cn wants you to clarify Oracle 10g. Which condition in your database forces you to perform only consistent backups？（）

• A、The database is in mount state.
• B、One of the tablespaces is offline.
• C、One of the tablespaces is read only.
• D、The database operates in ARCHIEVELOG mode. 
• E、The database operates in NOARCHIEVELOG mode.

第2题：

You plan to execute the following command to perform a Flashback Database operation in your database：   SQL> FLASHBACK DATABASE TO TIMESTAMP （SYSDATE -5/24）；   Which two statements are true about this？（）

• A、 The database must have multiplexed redo log files
• B、 The database must be in the MOUNT state to execute the command
• C、 The database must be in the NOMOUNT state to execute the command
• D、 The database must be opened in RESTRICTED mode before this operation
• E、 The database must be opened with the RESETLOGS option after the flashback operation

第3题：

You are maintaining a database that is in ARCHIVELOG mode. You have configured the flash recovery area in your database. The database is in MOUNT EXCLUSIVE mode， and you want to configure the Flashback Database feature. Which two options are NOT required to configure the Flashback Database feature？ （）

• A、 Open the database in read-only mode.
• B、 Set the retention target with the DB_FLASHBACK_RETENTION_TARGET initialization parameter.
• C、 Enable the block change tracking feature.
• D、 Execute the ALTER DATABASE FLASHBACK ON statement.

第4题：

You executed the STARTUP MOUNT command to start your database. For which database operation do you need to start the database in the MOUNT state？（）

• A、renaming the control files
• B、dropping a user in your database
• C、enabling or disabling redo log archiving
• D、dropping a tablespace in your database
• E、re-creating the control files， after you lost all the control files in your database

第5题：

After performing a clean shut down of the database instance for maintenance， you mount the database andthen execute a command to open the database：SQL> ALTER DATABASE OPEN； Which two statements are true（）

• A、The online redo log files and online data files are opened.
• B、All the online data file headers are checked for consistency.
• C、Instance recovery is performed before opening the database.
• D、The path and existence of all the log file members are checked

第6题：

You execute a command to resize a data file， sales.dbf， of size 200 MB in your database： ALTER DATABASE DATAFILE ’/remorse/sales.dbf’ RESIZE 150M；  Which statement is true about this command（）

• A、The command must be issued in MOUNT state.
• B、The command succeeds only if the data file is offline.
• C、The command must be issued when the database is in the archivelog mode.
• D、The command succeeds if no extent in the tablespace is currently allocated above the 150 MB boundary of the file.

第7题：

For which database operation would you need the database to be in the MOUNT state（）

• A、renaming the control files
• B、re-creating the control files
• C、dropping a user in your database
• D、dropping a tablespace in your database
• E、configuring the database instance to operate in the ARCHIVELOG or NOARCHIVELOG modes

第8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 ARCHIVELOG mode and the tablespace is online.
• C、The database is in ARCHIVELOG mode and the tablespace is offline.
• D、The database is in NOARCHIVELOG mode and the tablespace is online.
• E、The database is in NOARCHIVELOG mode and the tablespace is offline.

第9题：

You are using the following command to clear the log file group： ALTER DATABASE CLEAR LOFFILE GROUP 2； In which case would the command be successful？（）

• A、Group 2 is the active group.
• B、Group 2 is the current group.
• C、Database is in the MOUNT state.
• D、Group 2 has been already archived.

第10题：

our database is in the MOUNT state and you execute the following command to open it：  ALTER DATABASE OPEN  What two actions are performed as a result of this command？（）

• A、All control files are opened.
• B、All redo log files are opened
• C、The password file is opened.
• D、The parameter file is opened.
• E、All online data files are opened.