单选题Note the following points describing various utilities in Oracle Database 11g：  1：It enables the high-speed transfer of data from one database to another.  2：It provides a complete solution for the backup， restoration， and recovery needs of the entire 

第1题：

You are working on an Oracle Database 10g database. Because of data loss， you decided to perform a Flashback Database operation using the following command：  SQL> FLASHBACK DATABASE TO TIMESTAMP（SYSDATE 5/24）;  Which two statements are true？ （）

• A、SYSDATE should not be used with TIMESTAMP.
• B、The database must have multiplexed redo log files.
• C、The database must be in the MOUNT state to execute the command.
• D、The database must be opened with the RESETLOGS option after the flashback operation.
• E、The entire database needs to be restored from the most recent backup before the flashback operation.

第2题：

In your production database you want to use an Automatic Storage Management （ASM） instance to manage the database files. Which option would you use to migrate the database files from a non-ASM instance to an ASM instance？（）

• A、Oracle Migration Assistant
• B、Recovery Manager （RMAN）
• C、Oracle Data Pump Export and Import
• D、conventional Oracle Export and Import
• E、operating system utilities to copy the files to the ASM instance

第3题：

A customer has the need to implement a tape backup solution to backup a 500GB database on a daily basis.  Which of the following factors is the most important consideration in the design of a backup and restore solution？（）

• A、Amount of data in the backup
• B、Bandwidth available to the tape device
• C、Length of the backup/restore window
• D、Speed that the backup system can find files for restoration

第4题：

Note the following points describing various utilities in Oracle Database 1g：1. It enables the high-speed transfer of data from one database to another. 2. It provides a complete solution for the backup， restoration， and recovery needs of the entire database.3. It enables the loading of data from an external file into an Oracle database.4. It provides a tape backup management for the Oracle ecosystem. Which point describes Oracle Secure Backup（）

• A、1
• B、2
• C、3
• D、4
• E、1， 2， and 4
• F、1， 2， 3， and 4

第5题：

Note the following points describing various utilities in Oracle Database 11g：  1：It enables the high-speed transfer of data from one database to another.  2：It provides a complete solution for the backup， restoration， and recovery needs of the entire database.  3：It enables the loading of data from an external file into an Oracle database.  4：It provides a tape backup management for the Oracle ecosystem. Which point describes Oracle Secure Backup（）

• A、1
• B、2
• C、3
• D、4
• E、1，2，and 4
• F、1，2，3，and 4

第6题：

Your database is in NOARCHIVELOG mode and a logswitch happens every 20 minutes. On Thursday morning，media failure resulted in corruption of a data file belonging to the TOOLS tablespace. Backups are taken on every Sunday.  What would you do in this situation？（）

• A、recover using Oracle Flashback Database technology
• B、restore the data files from backup and perform a complete recovery
• C、restore only the corrupted data file and perform tablespace recovery
• D、restore the data files from backup and perform cancel-based recovery
• E、restore the entire database from the most recent backup and start the instance and open the database

第7题：

A data file become corrupted in your database due to bad sectors on the disk. Because of corruption， you lost all the important tables in that data file. Which method would you use for recovery？（）

• A、 Flash back all the tables in the data file， one by one.
• B、 Restore the data file to a new location and perform a media recovery.
• C、 Flash back the database， there is no need to restore the data file.
• D、 Restore the data file from the most recent backup and flash the database.

第8题：

In your database， online redo log files are multiplexed and one of the members in a group is lost due to media failure？ How would you recover the lost redo log member？（）

• A、 import the database from the last export
• B、 restore all the members in the group from the last backup
• C、 drop the lost member from the database and then add a new member to the group
• D、 restore all the database files from the backup and then perform a complete recovery
• E、 restore all the database files from the backup and then perform an incomplete recovery

第9题：

Note the following points describing various utilities in Oracle Database 11g： 1. It enables the transfer of data from one database to another. 2. It provides a complete solution for the backup， restoration， and recovery needs of the entire database. 3. It enables the loading of data from an external file into tables of an Oracle database. 4. It provides a tape backup management for the Oracle ecosystem.  Which point describes the Oracle Data Pump utility（）

• A、1
• B、2
• C、3
• D、4
• E、1 and 3
• F、1， 2， 3， and 4

第10题：

The database Is configured in ARCHIVELOG mode. The database needs to be up 24 X 7. You want to perform user managed backup for the data files of the HR_DATA tablespace.To accomplish the task, you issued the following command: SQL> ALTER TABLESPACE hi_data BEGIN BACKUP; Which two statements are true in this scenario? （）

• A、No transaction on the tablespace is allowed but you can perform queries.
• B、The tablespace will automatically come out of backup mode when the file copy is complete.
• C、The checkpoint change number is frozen in headers of the data files until the file is removed from backup mode.
• D、The database writes the before image of an entire block to the redo stream before modifying. block tor the first time.