DB_RECOVERY_FILE_DEST only
DB_FLASHBACK_RETENTION_TARGET only
DB_RECOVERY_FILE_DEST_SIZE and DB_RECOVERY_FILE_DEST only
DB_RECOVERY_FILE_DEST and DB_FLASHBACK_RETENTION_TARGET only
DB_RECOVERY_FILE_DEST_SIZE, DB_RECOVERY_FILE_DEST and
DB_FLASHBACK_RETENTION_TARGET
第1题:
Your Oracle Database 10g is online when you execute the following statement: SQL>ALTER TABLESPACE MY_TABLESPACE FLASHBACK OFF; What is the result of executing this statement if the Flashback Database feature is already enabled in the database?()
第2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?()
第3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?()
第4题:
You executed the following query in your database: SELECT oldest_flashback_scn, oldest_flashback_time FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output?()
第5题:
You executed the following query in your database: FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output?()
第6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?()
第7题:
V$FLASHBACK_DATABASE_LOG
V$FLASHBACK_DATABASE_STAT
V$DATABASE
V$UNDOSTAT
第8题:
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING
第9题:
DB_RECOVERY_FILE_DEST only
DB_FLASHBACK_RETENTION_TARGET only
DB_RECOVERY_FILE_DEST_SIZE and DB_RECOVERY_FILE_DEST only
DB_RECOVERY_FILE_DEST and DB_FLASHBACK_RETENTION_TARGET only
DB_RECOVERY_FILE_DEST_SIZE, DB_RECOVERY_FILE_DEST and
DB_FLASHBACK_RETENTION_TARGET
第10题:
The database does not record flashback logs for MY_TABLESPACE
The tables residing in MY_TABLESPACE are not protected by the Recycle Bin.
All the tablespaces except MY_TABLESPACE can be recovered using Flashback Database feature.
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
第11题:
LGWR
DBWR
MMON
RVWR
第12题:
the time when the last flashback operation in your database was performed
the time when the first flashback operation in your database was performed
a list of flashback operations performed in your database using SCN and time
the approximate time and the lowest system change number (SCN) to which you can flash back your database
第13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 will you use to enable the block change tracking feature?()
第14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?()
第15题:
You can use Oracle Flashback to look at past activity in your database. What are two other characteristics of Oracle Flashback?()
第16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?()
第17题:
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?()
第18题:
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING;
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE <path>;
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE <path>;
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING;
第19题:
Oracle Flashback uses undo information to construct consistent data.
You can use a cursor opened while using an Oracle Flashback image to perform DML once you deactivate Oracle Flashback in your session.
You can only use Oracle Flashback view of the data if the required records are still in the online redo log files.
Oracle Flashback lists the DML that was executed during the period you identify when initiating your session.
第20题:
Flashback logs are not archived.
Flashback logs are maintained in redo log files.
Flashback logs are maintained in the Flash Recovery Area.
Flashback logs are used to maintain Flashback Database related errors.
Flashback logs need to be cleared manually after you disable Flashback Database.
第21题:
The time when the last flashback operation in your database was performed.
The time when the first flashback operation in your database was performed.
A list of flashback operations performed in your database using SCN and time.
The approximate time and the lowest system change number (SCN) to which you can flash back your database.
第22题:
You must configure OMF in your database.
You must enable block change tracking feature in your database.
You must enable ROW MOVEMENT feature on the ORDERS table.
You must use the Flashback Version Query before using the Flashback Table feature.
第23题:
STARTUP MOUNT EXCLUSIVE ALTER DATABASE FLASHBACK ON; ALTER DATABASE OPEN;
STARTUP MOUNT ALTER DATABASE FLASHBACK ON; ALTER DATABASE OPEN RESETLOGS;
STARTUP MOUNT EXCLUSIVE ATLER DATABASE ARCHIVELOG; ALTER DATABASE FLASHBACK ON; ALTER DATABASE OPEN RESETLOGS;
STARTUP MOUNT ALTER DATABASE ARCHIVELOG; ALTER DATABASE FLASHBACK ON; ALTER DATABASE OPEN;
第24题:
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING USING FILE
ALTER DATABASE ENABLE BLOCK CHANGE TRACKING USING FILE
ALTER SYSTEM ENABLE BLOCK CHANGE TRACKING