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单选题
You decide to enable Flashback Database in your Oracle 10g database so that future recoveries will take less time than traditional recoveries. Which of the following parameters must be included in your initialization parameter file before enabling Flashback Database？（）
A
DB_RECOVERY_FILE_DEST only
B
DB_FLASHBACK_RETENTION_TARGET only
C
DB_RECOVERY_FILE_DEST_SIZE and DB_RECOVERY_FILE_DEST only
D
DB_RECOVERY_FILE_DEST and DB_FLASHBACK_RETENTION_TARGET only
E
DB_RECOVERY_FILE_DEST_SIZE， DB_RECOVERY_FILE_DEST and
F
DB_FLASHBACK_RETENTION_TARGET
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You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature. Which statement should you use to enable the block change tracking feature?（）A. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING;B. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE path;C. ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE path;D. ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING;
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You are working on an Oracle Database 10g database. You enabled the Flashback Database feature. Which two statements regarding flashback logs are true？ （）A、 Flashback logs are not archived.B、 Flashback logs are maintained in redo log files.C、 Flashback logs are maintained in the Flash Recovery Area.D、 Flashback logs are used to maintain Flashback Database related errors.E、 Flashback logs need to be cleared manually after you disable Flashback Database.
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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.
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You work as a database administrator for Certkiller .com. You want to administer your database servers，which are running on different host machines，using the Web-enabled grid control interface. You have configured the agent on the host machines. You have started the Oracle Database 10g Grid Control utility on your machine. Which two additional components would you configure to achieve this objective？（）A、Application Server ControlB、Oracle Management ServiceC、Oracle Enterprise Manager RepositoryD、Oracle Enterprise Manager Database Control
考题
Your Oracle Database 10g is online when you execute the following statement： SQLALTER TABLESPACE MY_TABLESPACE FLASHBACK OFF； What is the result of executing this statement if the Flashback Database feature is already enabled in the database？（）A、 The database does not record flashback logs for MY_TABLESPACEB、 The tables residing in MY_TABLESPACE are not protected by the Recycle Bin.C、 All the tablespaces except MY_TABLESPACE can be recovered using Flashback Database feature.D、 None of the flashback technologies， such as Flashback Table， Flashback Transaction Query and Flashback Version Query can be used to recover individual rows within the objects from MY_TABLESPACE
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You have not configured Oracle Managed Files （OMF） in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature. Which statement will you use to enable the block change tracking feature？（）A、 ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING；B、 ALTER DATABASE ENABLE BLOCK CHANGE TRACKING；C、 ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE ；D、 ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE ；
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You decide to enable Flashback Database in your Oracle 10g database so that future recoveries will take less time than traditional recoveries. Which of the following parameters must be included in your initialization parameter file before enabling Flashback Database？（）A、 DB_RECOVERY_FILE_DEST onlyB、 DB_FLASHBACK_RETENTION_TARGET onlyC、 DB_RECOVERY_FILE_DEST_SIZE and DB_RECOVERY_FILE_DEST onlyD、 DB_RECOVERY_FILE_DEST and DB_FLASHBACK_RETENTION_TARGET onlyE、 DB_RECOVERY_FILE_DEST_SIZE， DB_RECOVERY_FILE_DEST andF、 DB_FLASHBACK_RETENTION_TARGET
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You are working as a DBA at NetFx Corporation. You discover that the SCOTT schema is deleted by mistake. You decide to flash the database back to the time when the schema existed. Which view will you query to determine the estimated size of the flashback data that you require for your current target retention？（）A、 V$FLASHBACK_DATABASE_LOGB、 V$FLASHBACK_DATABASE_STATC、 V$DATABASED、 V$UNDOSTAT
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You dropped a schema of a user in an Oracle 10g by mistake. You decide to flash the database back to its previous state to restore the deleted schema. Which process writes the before images of the physical database blocks to the flashback database logs？（）A、 LGWRB、 DBWRC、 MMOND、 RVWR
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You can use Oracle Flashback to look at past activity in your database. What are two other characteristics of Oracle Flashback？（）A、Oracle Flashback uses undo information to construct consistent data. B、You can use a cursor opened while using an Oracle Flashback image to perform DML once you deactivate Oracle Flashback in your session. C、You can only use Oracle Flashback view of the data if the required records are still in the online redo log files. D、Oracle Flashback lists the DML that was executed during the period you identify when initiating your session.
考题
You executed the following query in your database： SELECT oldest_flashback_scn， oldest_flashback_time FROM V$FLASHBACK_DATABASE_LOG； What would you determine from the output？（）A、 The time when the last flashback operation in your database was performed.B、 The time when the first flashback operation in your database was performed.C、 A list of flashback operations performed in your database using SCN and time.D、 The approximate time and the lowest system change number （SCN） to which you can flash back your database.
考题
You are managing a single instance Oracle 10g database that utilizes the following parameters： Which of the following set of commands must you execute to enable Flashback Database？（）A、 STARTUP MOUNT EXCLUSIVE ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN；B、 STARTUP MOUNT ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN RESETLOGS；C、 STARTUP MOUNT EXCLUSIVE ATLER DATABASE ARCHIVELOG； ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN RESETLOGS；D、 STARTUP MOUNT ALTER DATABASE ARCHIVELOG； ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN；
考题
You executed the following query in your database： FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output？（）A、the time when the last flashback operation in your database was performedB、the time when the first flashback operation in your database was performedC、a list of flashback operations performed in your database using SCN and timeD、the approximate time and the lowest system change number （SCN） to which you can flash back your database
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Flashback Database is enabled in your Oracle 10g database. One of your database users erroneously purged an important table residing in his schema. The table was purged sometime between 10：00 P.M. and 10：30 P.M. The next day， you decide to flash back the database. Before you flash back the database， you want to ensure that you have all the necessary flashback data. Which dynamic performance view must you use to determine whether you have the required flashback data to recover the purged table？（）A、 V$DATABASEB、 V$UNDOSTATC、 V$FLASHBACK_DATABASE_LOGD、 V$FLASHBACK_DATABASE_STAT
考题
You are performing flashback of the ORDERS table in the Scott’s schema because some important data is deleted in the table by mistake. The SCN number was 771513 at the time of deletion. You issued the following statement to perform Flashback Table： SQL FLASHBACK TABLE ORDERS TO SCN 771513； What is the prerequisite to perform Flashback Table？（）A、 You must configure OMF in your database.B、 You must enable block change tracking feature in your database.C、 You must enable ROW MOVEMENT feature on the ORDERS table.D、 You must use the Flashback Version Query before using the Flashback Table feature.
考题
单选题You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature. Which statement should you use to enable the block change tracking feature?（）A
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING;B
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE path;C
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE path;D
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING;
考题
单选题You are working as a DBA at NetFx Corporation. You discover that the SCOTT schema is deleted by mistake. You decide to flash the database back to the time when the schema existed. Which view will you query to determine the estimated size of the flashback data that you require for your current target retention？（）A
V$FLASHBACK_DATABASE_LOGB
V$FLASHBACK_DATABASE_STATC
V$DATABASED
V$UNDOSTAT
考题
多选题You can use Oracle Flashback to look at past activity in your database. What are two other characteristics of Oracle Flashback？（）AOracle Flashback uses undo information to construct consistent data.BYou can use a cursor opened while using an Oracle Flashback image to perform DML once you deactivate Oracle Flashback in your session.CYou can only use Oracle Flashback view of the data if the required records are still in the online redo log files.DOracle Flashback lists the DML that was executed during the period you identify when initiating your session.
考题
单选题You have not configured Oracle Managed Files (OMF) in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature.Which statement should you use to enable the block change tracking feature?（）A
ALTER DATABASE ENABLE BLOCK CHANGE TRACKINGB
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE C
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE D
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING
考题
多选题You are working on an Oracle Database 10g database. You enabled the Flashback Database feature. Which two statements regarding flashback logs are true？ （）AFlashback logs are not archived.BFlashback logs are maintained in redo log files.CFlashback logs are maintained in the Flash Recovery Area.DFlashback logs are used to maintain Flashback Database related errors.EFlashback logs need to be cleared manually after you disable Flashback Database.
考题
单选题You decide to enable Flashback Database in your Oracle 10g database so that future recoveries will take less time than traditional recoveries. Which of the following parameters must be included in your initialization parameter file before enabling Flashback Database？（）A
DB_RECOVERY_FILE_DEST onlyB
DB_FLASHBACK_RETENTION_TARGET onlyC
DB_RECOVERY_FILE_DEST_SIZE and DB_RECOVERY_FILE_DEST onlyD
DB_RECOVERY_FILE_DEST and DB_FLASHBACK_RETENTION_TARGET onlyE
DB_RECOVERY_FILE_DEST_SIZE， DB_RECOVERY_FILE_DEST andF
DB_FLASHBACK_RETENTION_TARGET
考题
单选题You executed the following query in your database： SELECT oldest_flashback_scn， oldest_flashback_time FROM V$FLASHBACK_DATABASE_LOG； What would you determine from the output？（）A
The time when the last flashback operation in your database was performed.B
The time when the first flashback operation in your database was performed.C
A list of flashback operations performed in your database using SCN and time.D
The approximate time and the lowest system change number （SCN） to which you can flash back your database.
考题
单选题Your Oracle Database 10g is online when you execute the following statement： SQLALTER TABLESPACE MY_TABLESPACE FLASHBACK OFF； What is the result of executing this statement if the Flashback Database feature is already enabled in the database？（）A
The database does not record flashback logs for MY_TABLESPACEB
The tables residing in MY_TABLESPACE are not protected by the Recycle Bin.C
All the tablespaces except MY_TABLESPACE can be recovered using Flashback Database feature.D
None of the flashback technologies， such as Flashback Table， Flashback Transaction Query and Flashback Version Query can be used to recover individual rows within the objects from MY_TABLESPACE
考题
单选题You are performing flashback of the ORDERS table in the Scott’s schema because some important data is deleted in the table by mistake. The SCN number was 771513 at the time of deletion. You issued the following statement to perform Flashback Table： SQL FLASHBACK TABLE ORDERS TO SCN 771513； What is the prerequisite to perform Flashback Table？（）A
You must configure OMF in your database.B
You must enable block change tracking feature in your database.C
You must enable ROW MOVEMENT feature on the ORDERS table.D
You must use the Flashback Version Query before using the Flashback Table feature.
考题
单选题You dropped a schema of a user in an Oracle 10g by mistake. You decide to flash the database back to its previous state to restore the deleted schema. Which process writes the before images of the physical database blocks to the flashback database logs？（）A
LGWRB
DBWRC
MMOND
RVWR
考题
单选题You are managing a single instance Oracle 10g database that utilizes the following parameters： Which of the following set of commands must you execute to enable Flashback Database？（）A
STARTUP MOUNT EXCLUSIVE ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN；B
STARTUP MOUNT ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN RESETLOGS；C
STARTUP MOUNT EXCLUSIVE ATLER DATABASE ARCHIVELOG； ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN RESETLOGS；D
STARTUP MOUNT ALTER DATABASE ARCHIVELOG； ALTER DATABASE FLASHBACK ON； ALTER DATABASE OPEN；
考题
单选题You executed the following query in your database： FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output？（）A
the time when the last flashback operation in your database was performedB
the time when the first flashback operation in your database was performedC
a list of flashback operations performed in your database using SCN and timeD
the approximate time and the lowest system change number （SCN） to which you can flash back your database
考题
单选题You have not configured Oracle Managed Files （OMF） in your database. You do not want to scan the entire datafile every time an incremental backup is performed. You decide to enable the block change tracking feature. Which statement should you use to enable the block change tracking feature？（）A
ALTER DATABASE ENABLE BLOCK CHANGE TRACKINGB
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE C
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE D
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING
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