When youre performing active database duplication，a backup of what kind is required？（）  

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  A . Until SCN B . Until time C . Until cancel D . Recover using backup control file.

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• Which are the prerequisites for performing flashback transactions on your database？（）

  A .  Undo retention guarantee for the database must be configured. B .  Supplemental log must be enabled for the primary key. C .  Supplemental log must be enabled. D .  Execute permission on the DBMS_FLASHBACK package must be granted to the user.

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• Your boss at Certkiller .com 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.

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• When youre performing a tablespace point-in-time recovery， which tablespaces will always be restored to the auxiliary instance？（）

  A .  The SYSTEM tablespace. B .  The UNDO tablespace. C .  All tablespaces with tables. D .  All tablespaces with indexes. E .  No tablespaces are automatically restored.

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• Your database is functioning in NOARCHIVELOG mode. Your database contains 15 tablespaces. You want to use Recovery Manager （RMAN） to perform backups.  Which two backups would you be able to perform when the database is being accessed by users？（）

  A . backup of offline tablespaces B . backup of read­only tablespaces C . backup of system­critical tablespaces D . backup of online， locally managed tablespaces E . backup of read/write dictionary­managed tablespace

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• Which two tasks can your perform by using the TO_CHAR function? （）

  A . Convert 10 to 'TEN' B . Convert '10' to 10 C . Convert '10' to '10' D . Convert 'TEN' to 10 E . Convert a date to a character expression F . Convert a character expression to a date

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• You want to perform the database backup when user activity on your system is low, such as between 12:00 a.m. and 2:00 am. Which command terminates with an error if the backup is not complete at the end of the specified duration?（）

  A . RMAN> BACKUP DURATION 2:00 MINIMIZE LOAD DATABASE B . RMAN> BACKUP DURATION 2:00 PARTIAL FILESPERSET 1 DATABASE C . RMAN> BACKUP DURATION 2:00 PARTIAL MINIMIZE TIME DATABASE  D . RMAN> BACKUP AS COPY DURATION 2:00 PARTIAL MINIMIZE LOAD DATABASE

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• According to your backup strategy， you performed an incremental level 0 backup of your database. Which statement regarding this backup is true？（）

  A . The backup is similar to image copy. B . The backup contains all used data blocks. C . The backup contains only unused data blocks. D . The backup contains all data blocks changed since the last incremental level 1 backup.

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• 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.

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• Your database is functioning in NOARCHIVELOG mode. Your database contains 15 tablespaces. You want to use Recovery Manager （RMAN） to perform backups. Which two backups would you be able to perform when the database is being accessed by users？（）

  A .  Backup of offline tablespaces. B .  Backup of read-only tablespaces. C .  Backup of system-critical tablespaces. D .  Backup of online， locally managed tablespaces. E .  Backup of read/write dictionary-managed tablespaces.

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• A customer needs to implement a Highly Available solution for JMS that has a primary data center  and a backup. Which three steps would you perform when designing your solution?（）

  A . Store Transaction Logs in a database and use Database stores for JMS to make replication between sites easier. B . Use file based Transaction Logs and JMS stores and implement a separate replication solution  for files in addition to database in case database replication fails. C . Implement Oracle RAC at each site to provide a highly available solution within each datacenter. D . Configure Whole Server Migration to migrate WebLogic Managed Servers from the primary to the secondary site. E . Configure Automatic Service Migration for JMS high availability within a datacenter.

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• you can perform an active database duplication when the database is in NOARCHIVELOG mode.（）

  A .  True B .  False

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• Which two tasks can your perform by using the TO_CHAR function?（）

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