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多选题
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
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更多 “多选题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?（）AThe database must have multiplexed redo log filesBThe database must be in the MOUNT state to execute the commandCThe database must be in the NOMOUNT state to execute the commandDThe database must be opened in RESTRICTED mode before this operationEThe database must be opened with the RESETLOGS option after the flashback operation” 相关考题
考题
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 filesB. The database must be in the MOUNT state to execute the commandC. The database must be in the NOMOUNT state to execute the commandD. The database must be opened in RESTRICTED mode before this operationE. The database must be opened with the RESETLOGS option after the flashback operation
考题
You want to flash back a test database by five hours.You issue this command:SQL > FLASHBACK DATABASE TO TIMESTAMP (SYSDATE － 5／24);Which two statements are true about this flashback scenario?()
A. The database must have multiplexed redo logs for the flashback to succeed.B. The database must be MOUNTED for the flashback to succeed.C. The database must use block change tracking for the flashback to succeed.D. The database must be opened in restricted mode for the flashback to succeed.E. The database must be opened with the RESETLOGS option after the flashback is complete.F. The database must be opened in read-only mode to check if the database has been flashed back to the correct SCN.
考题
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.
考题
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.
考题
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.
考题
Which two statements are true regarding the database in ARCHIVELOG mode？（）A、You have to shut down the database to perform the backups.B、Archiving information is written to the data files and redo log files.C、You can perform complete database backups without closing the database.D、Online redo log files have to be multiplexed before putting the database in ARCHIVELOG mode.E、All the previous database backups become invalid after you configure the database to ARCHIVELOG mode.
考题
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 filesB、 The database must be in the MOUNT state to execute the commandC、 The database must be in the NOMOUNT state to execute the commandD、 The database must be opened in RESTRICTED mode before this operationE、 The database must be opened with the RESETLOGS option after the flashback operation
考题
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
考题
These are the details about V$FLASHBACK_DATABASE_STAT： SQL DESC V$FLASHBACK_DATABASE_STAT Name Null？ Type ------------- -------- -------------- BEGIN_TIME DATE END_TIME DATE FLASHBACK_DATA NUMBER DB_DATA NUMBER REDO_DATA NUMBER ESTIMATED_FLASHBACK_SIZE NUMBER Which two statements regarding the V$FLASHBACK_DATABASE_STAT view are true？ （）A、BEGIN_TIME is the time at which Flashback logging is enabled.B、END_TIME is the time at which the query is executed on the view.C、REDO_DATA is the number of bytes of redo data written during the interval.D、This view contains information about flashback data pertaining to the last 24 hours.E、FLASHBACK_DATA is the amount of flashback data generated since the database was opened.
考题
Which three statements are true about Flashback Database?（）A、Flashback logs are written sequentially, and are archived.B、Flashback Database uses a restored control file to recover a database.C、The Oracle database automatically creates, deletes, and resides flashback logs in the Fast RecoveryArea.D、Flashback Database can recover a database to the state that it was in before a reset logs operation.E、Flashback Database can recover a data file that was dropped during the span of time of the flashback.F、Flashback logs are used to restore to the blocks' before images, and then the redo data may be used to roll forward to the desired flashback time.
考题
You executed the following query in your database： SELECT oldest_flashback_scn， oldest_flashback_time FROM V$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
考题
You work as a database administrator at Certkiller .com. You are working in an online transaction processing （OLTP） environment. You realize that the salary for an employee， John， has been accidentally modified in the EMPLOYEEStable. Two days ago， the data was in the correct state. Flashback logs generated during last two days are available in the flash recovery area. Which option would you choose to bring the data to the correct state while ensuring that no other data in the same table is affected？（）A、 perform point-in-time recoveryB、 perform a Flashback Table operation to restore the table to the state it was in two days agoC、 perform a Flashback Database operation to restore the database to the state it was in two days agoD、 perform Flashback Versions Query and Flashback Transaction Query to determine all the necessary undo SQL statements， and then use them for recovery
考题
You have lost all your database control files. To recover them， you are going to use the results of the alter database backup controlfile to trace command. Your datafiles and your online redo logs are all intact. Which of the following is true regarding your recovery？（） A、 You will need to open the database with the resetlogs command.B、 All you need to do is execute the trace file from SQL*Plus and it will perform the recovery for you.C、 You will use the resetlogs version of the create controlfile command.D、 You will use the noresetlogs version of the create controlfile command.E、 You will use the trace file to create a backup control file， and then you will recover the database with the recover database using backup controlfile command
考题
Flashback is enabled for your multitenant container database (CDB), which contains two pluggable database (PDBs). A local user was accidently dropped from one of the PDBs. You want to flash back the PDB to the time before the local user was dropped. You connect to the CDB and execute the following commands: SQL SHUTDOWN IMMEDIATE SQL STARTUP MOUNT SQL FLASHBACK DATABASE to TIME “TO_DATE (‘08/20/12’ , ‘MM/DD/YY’)”; Examine following commands: 1. ALTER PLUGGABLE DATABASE ALL OPEN; 2. ALTER DATABASE OPEN; 3. ALTER DATABASE OPEN RESETLOGS; Which command or commands should you execute next to allow updates to the flashback back schema?（）A、Only 1B、Only 2C、Only 3D、3 and 1E、1 and 2
考题
多选题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？（）AThe database must have multiplexed redo log filesBThe database must be in the MOUNT state to execute the commandCThe database must be in the NOMOUNT state to execute the commandDThe database must be opened in RESTRICTED mode before this operationEThe database must be opened with the RESETLOGS option after the flashback operation
考题
多选题Which three statements are true about Flashback Database?（）AFlashback logs are written sequentially, and are archived.BFlashback Database uses a restored control file to recover a database.CThe Oracle database automatically creates, deletes, and resides flashback logs in the Fast RecoveryArea.DFlashback Database can recover a database to the state that it was in before a reset logs operation.EFlashback Database can recover a data file that was dropped during the span of time of the flashback.FFlashback logs are used to restore to the blocks' before images, and then the redo data may be used to roll forward to the desired flashback time.
考题
多选题These are the details about V$FLASHBACK_DATABASE_STAT： SQL DESC V$FLASHBACK_DATABASE_STAT Name Null？ Type ------------- -------- -------------- BEGIN_TIME DATE END_TIME DATE FLASHBACK_DATA NUMBER DB_DATA NUMBER REDO_DATA NUMBER ESTIMATED_FLASHBACK_SIZE NUMBER Which two statements regarding the V$FLASHBACK_DATABASE_STAT view are true？ （）ABEGIN_TIME is the time at which Flashback logging is enabled.BEND_TIME is the time at which the query is executed on the view.CREDO_DATA is the number of bytes of redo data written during the interval.DThis view contains information about flashback data pertaining to the last 24 hours.EFLASHBACK_DATA is the amount of flashback data generated since the database was opened.
考题
多选题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（）AThe online redo log files and online data files are opened.BAll the online data file headers are checked for consistency.CInstance recovery is performed before opening the database.DThe path and existence of all the log file members are checked
考题
单选题You executed the following query in your database： FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output？（）A
the time when the last flashback operation in your database was performedB
the time when the first flashback operation in your database was performedC
a list of flashback operations performed in your database using SCN and timeD
the approximate time and the lowest system change number （SCN） to which you can flash back your database
考题
单选题You executed the following query in your database： SELECT oldest_flashback_scn， oldest_flashback_time FROM V$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
多选题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？ （）ASYSDATE should not be used with TIMESTAMP.BThe database must have multiplexed redo log files.CThe database must be in the MOUNT state to execute the command.DThe database must be opened with the RESETLOGS option after the flashback operation.EThe entire database needs to be restored from the most recent backup before the flashback operation.
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
多选题After performing a clean shut down of the database instance for maintenance， you mount thedatabase and then execute a command to open the database： SQL ALTER DATABASE OPEN； Which two statements are true（）AThe online redo log files and online data files are opened.BAll the online data file headers are checked for consistency.CInstance recovery is performed before opening the database.DThe path and existence of all the log file members are checked
考题
多选题Which two statements are true regarding the database in ARCHIVELOG mode？（）AYou have to shut down the database to perform the backups.BArchiving information is written to the data files and redo log files.CYou can perform complete database backups without closing the database.DOnline redo log files have to be multiplexed before putting the database in ARCHIVELOG mode.EAll the previous database backups become invalid after you configure the database to ARCHIVELOG mode.
考题
多选题You want to flash back a test database by five hours.You issue this command:SQL FLASHBACK DATABASE TO TIMESTAMP (SYSDATE - 5/24);Which two statements are true about this flashback scenario?（）AThe database must have multiplexed redo logs for the flashback to succeed.BThe database must be MOUNTED for the flashback to succeed.CThe database must use block change tracking for the flashback to succeed.DThe database must be opened in restricted mode for the flashback to succeed.EThe database must be opened with the RESETLOGS option after the flashback is complete.FThe database must be opened in read-only mode to check if the database has been flashed back to the correct SCN.
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.
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