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多选题
You need to ensure that the database users should be able to use the various flashback query features in order to go back in time by four hours. What would you do to achieve this?（）
A
set SQL_TRACE=True
B
set UNDO_RETENTION=14400
C
set FAST_START_MTTR_TARGET=240
D
set LOG_CHECKPOINT_INTERVAL=240
E
set DB_FLASHBACK_RETENTION_TARGET=14400
F
set the RETENTION GUARANTEE clause for the undo tablespace
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更多 “多选题You need to ensure that the database users should be able to use the various flashback query features in order to go back in time by four hours. What would you do to achieve this?（）Aset SQL_TRACE=TrueBset UNDO_RETENTION=14400Cset FAST_START_MTTR_TARGET=240Dset LOG_CHECKPOINT_INTERVAL=240Eset DB_FLASHBACK_RETENTION_TARGET=14400Fset the RETENTION GUARANTEE clause for the undo tablespace” 相关考题
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On Friday at 11:30 am you decided to flash back the database because of a user error that occurred at 8:30 am. Which option must you use to check whether a flashback operation can recover the database to the specified time? （）A. Check the alert log fileB. Query the V$FLASHBACK_DATABASE_LOG viewC. Query the V$RECOVERY_FILE_DEST_SIZE viewD.Query the V$FLASHBACK_DATABASE_STAT viewE. Check the value assigned for the UNDO_RETENTION parameter
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You want to use the Flashback Transaction Query feature to identify all the changes made to your database within a specific time period. What is a prerequisite for using the Flashback Transaction Query feature？（）A、 You must use automatic undo management in the database.B、 You must configure OMF in your database.C、 You must configure ASM for storing the datafiles.D、 You must multiplex the online redo log file.
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You need to ensure that the database users should be able to use the various flashback query features in order to go back in time by four hours. What would you do to achieve this?（）A、set SQL_TRACE=True B、set UNDO_RETENTION=14400 C、set FAST_START_MTTR_TARGET=240 D、set LOG_CHECKPOINT_INTERVAL=240 E、set DB_FLASHBACK_RETENTION_TARGET=14400 F、set the RETENTION GUARANTEE clause for the undo tablespace
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You have a database with the following tablespaces： SYSTEM， SYSAUX， UNDO， USERS， TEMP. You want to"roll back" the data in the USERS tablespace to the way it looked yesterday. Which tablespaces do you need to perform a point-in-time restore operation on in order to complete this task？（） A、 SYSTEMB、 SYSAUXC、 UNDOD、 USERSE、 TEMPF、 This restore is not possible
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On Friday at 11:30 am you decided to flash back the database because of a user error that occurred at 8:30 am. Which option must you use to check whether a flashback operation can recover the database to the specified time? （）A、Check the alert log fileB、Query the V$FLASHBACK_DATABASE_LOG viewC、Query the V$RECOVERY_FILE_DEST_SIZE viewD、Query the V$FLASHBACK_DATABASE_STAT viewE、Check the value assigned for the UNDO_RETENTION parameter
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You work as a database administrator for Supportcenter.cn. One of the database users accidentally deleted all the rows of a critical table and committed the delete at 1：30 p.m. You senior database administrator， SupportCenter， asks you to retrieve the lost data. Which two actions would you use to ensure that there is no impact on other connected users while retrieving the deleted rows？（）A、Use a flashback query to retrieve the rows that were deletedB、Useconventialincremental export and then import the affected objectC、Shutdown the database inNORMALmode and restart the database instanceD、Use DBMS_META package to reconstruct the object using undo segmentsE、UseTablespacePoint in Time Recovery （TSPITR） method to recover the table and the dataF、Use Oracle DataPumptwithflashback_timeoption toentableflashback export and then import the affected object.
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You work as a database administrator for Certkiller .com. Your database is configured for automatic undo management. UNDO_RETENTION is set to 3 hours. You want to flash back a table that was created last year. How far back can the flashback query go？ （）A、3 hoursB、6 monthsC、until last yearD、until last commitE、until the point when the undotablespacewas refreshedF、until the database is shut down and the memory erased
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You executed the following query in your database： SELECT oldest_flashback_scn， oldest_flashback_time FROM V$FLASHBACK_DATABASE_LOG； What would you determine from the output？（）A、 The time when the last flashback operation in your database was performed.B、 The time when the first flashback operation in your database was performed.C、 A list of flashback operations performed in your database using SCN and time.D、 The approximate time and the lowest system change number （SCN） to which you can flash back your database.
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You are working in an online transaction processing （OLTP） environment. You used the FLASHBACK TABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command， the System Change Number （SCN） was 663571. After flashing back the CUSTOMERS table， you realize that the table is not in the correct state and the resultant changes are not what you had desired. So， you need to reverse the effects of the FLASHBACK TABLE command while ensuring that： a） No other user data in the database is affected. b） The operation takes the minimum possible time. Which option would you choose？（）A、use the ROLLBACK command with SCN 663571B、perform Flashback Transaction Query with SCN 663571C、execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571D、execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571
考题
You executed the following query in your database： FROM V$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
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考题
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You are working on an Oracle Database 10g database that operates in the ARCHIVELOG mode. At 06：00 p.m.， you discovered that a table in the SYSTEM tablespace that does not belong to the data dictionary was dropped at 03：00 p.m. What would you do to recover the table？（）A、 use the Flashback Transaction Query feature to identify the relevant SQL statement and use it to undrop the tableB、 restore the entire database from the most recent backup and open itC、 recover the table by using the Flashback Table featureD、 perform point-in-time recovery to recover the table
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You are a database administrator for your company. The company’s financial forecasting application uses a SQL Server 2005 database that enables business users to run both ad hoc and predefined queries. You suspect that some queries consume an excessive amount of server resources. You need to identify which queries consume the most resources. You want to achieve this goal as quickly as possible. What should you do？（）A、Use the DBCC INPUTBUFFER command.B、Use the sys.dm_exec_query_stats dynamic management view （DMV）.C、Use the sqldiag utility.D、Use the SHOWPLAN session option.
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You work as a Web Developer at Certkiller.com. You are in the process of creating a Webapplication. You decide to make use of Microsoft ASP.NET 3.5 in order to create the application. The followingmarkup is present on the page： " ="" selectcommand="GetUsers" selectcommandtype="StoredProcedure" filterexpression="Active=1 AND Name LIKE ’{0}%’"> The page is used to retrieve the Users from a company database. However， only the active usersare displayed. The TextBox control allows you to also filter users by status. You do not specify astatus when you click the Filter button. You notice that the page does not filter by active users andshows all the users that are retrieved from the database. You need to make the necessary settingsto ensure that only the active users are being displayed on the page when a status is notspecified. What should you do？（）A、You should ensure that a default value for the Status property of the ControlParameter controlis set.B、You should ensure that the PropertyName property of the ControlParameter control is set toText.C、You should ensure that the ControlParameter control’s ConvertEmptyStringToNull property isset to false.D、You should ensure that the {0} placeholder in the FilterExpression property is replaced with the（？） symbol.
考题
多选题You have a database with the following tablespaces： SYSTEM， SYSAUX， UNDO， USERS， TEMP. You want to"roll back" the data in the USERS tablespace to the way it looked yesterday. Which tablespaces do you need to perform a point-in-time restore operation on in order to complete this task？（）ASYSTEMBSYSAUXCUNDODUSERSETEMPFThis restore is not possible
考题
单选题You are working in an online transaction processing （OLTP） environment. You used the FLASHBACK TABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command， the System Change Number （SCN） was 663571. After flashing back the CUSTOMERS table，you realize that the table is not in the correct state and the resultant changes are not what you had desired. So， you need to reverse the effects of the FLASHBACK TABLE command while ensuring that： a） No other user data in the database is affected. b） The operation takes the minimum possible time. Which option would you choose？（）A
use the ROLLBACK command with SCN 663571B
perform Flashback Transaction Query with SCN 663571C
execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571D
execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571
考题
单选题The system was running a normal workload during the last 24 hours. You need to ensure that with the same workload you should be able to flashback tables by three hours. What would you do to find the system recommendations for the undo retention period and the undo tablespace size?（）A
set DB_FLASHBACK_RETENTION_TARGET=10800 B
create a new scheduler window for the time period of 24 hours and use the optimizer statistics C
modify the Automatic Workload Repository (AWR) snapshot time interval to three hours and use ADDMfindings D
specify New Undo Retention as three hours and Analysis Time period as Last One Day in the Undo Advisor page and use its recommendations
考题
单选题You want to use the Flashback Transaction Query feature to identify all the changes made to your database within a specific time period. What is a prerequisite for using the Flashback Transaction Query feature？（）A
You must use automatic undo management in the database.B
You must configure OMF in your database.C
You must configure ASM for storing the datafiles.D
You must multiplex the online redo log file.
考题
多选题You work as a database administrator for Certkiller .com. One of the database users accidentally deleted all the rows of a critical table and committed the delete at 1：30 p.m. You senior database administrator， Certkiller， asks you to retrieve the lost data. Which two actions would you use to ensure that there is no impact on other connected users while retrieving the deleted rows？（）AUse a flashback query to retrieve the rows that were deletedBUseconventialincremental export and then import the affected objectCShutdown the database inNORMALmode and restart the database instanceDUse DBMS_META package to reconstruct the object using undo segmentsEUseTablespacePoint in Time Recovery （TSPITR） method to recover the table and the dataFUse Oracle DataPumptwithflashback_timeoption toentableflashback export and then import the affected object.
考题
多选题You need to ensure that the database users should be able to use the various flashback query features in order to go back in time by four hours. What would you do to achieve this?（）Aset SQL_TRACE=TrueBset UNDO_RETENTION=14400Cset FAST_START_MTTR_TARGET=240Dset LOG_CHECKPOINT_INTERVAL=240Eset DB_FLASHBACK_RETENTION_TARGET=14400Fset the RETENTION GUARANTEE clause for the undo tablespace
考题
单选题You executed the following query in your database： FROM V$FLASHBACK_DATABASE_LOG; What would you determine from the output？（）A
the time when the last flashback operation in your database was performedB
the time when the first flashback operation in your database was performedC
a list of flashback operations performed in your database using SCN and timeD
the approximate time and the lowest system change number （SCN） to which you can flash back your database
考题
单选题From the V$SESSION_LONGOPS view， you find that some of the database users have long/x7frunning queries that consume a lot of CPU time. This causes performance problems for other users in the database， who have much shorter queries. You would like to make sure that the users with large queries do not use all the CPU time， but you still do not want to terminate them with an error message. Which method would you follow to achieve this？（）A
set the CPU time per call in the users profileB
set the CPU time per session in the users profilesC
set the CPU levels for the users’ group using Resource ManagerD
set the TIMED_STATISTICS parameter to TRUE in the parameter file
考题
单选题You work as a Web Developer at Certkiller.com. You are in the process of creating a Webapplication. You decide to make use of Microsoft ASP.NET 3.5 in order to create the application. The followingmarkup is present on the page： " SelectCommand="GetUsers" SelectCommandType="StoredProcedure" FilterExpression="Active=1 AND Name LIKE ’{0}%’" The page is used to retrieve the Users from a company database. However， only the active usersare displayed. The TextBox control allows you to also filter users by status. You do not specify astatus when you click the Filter button. You notice that the page does not filter by active users andshows all the users that are retrieved from the database. You need to make the necessary settingsto ensure that only the active users are being displayed on the page when a status is notspecified. What should you do？（）A
You should ensure that a default value for the Status property of the ControlParameter controlis set.B
You should ensure that the PropertyName property of the ControlParameter control is set toText.C
You should ensure that the ControlParameter control’s ConvertEmptyStringToNull property isset to false.D
You should ensure that the {0} placeholder in the FilterExpression property is replaced with the（？） symbol.
考题
单选题You are working in an online transaction processing （OLTP） environment. You used the FLASHBACK TABLE command to flash back the CUSTOMERS table. Before executing the FLASHBACK TABLE command， the System Change Number （SCN） was 663571. After flashing back the CUSTOMERS table， you realize that the table is not in the correct state and the resultant changes are not what you had desired. So， you need to reverse the effects of the FLASHBACK TABLE command while ensuring that： a） No other user data in the database is affected. b） The operation takes the minimum possible time. Which option would you choose？（）A
Use ROLLBACK command with SCN 663571.B
Perform Flashback Transaction Query with SCN 663571.C
Execute the FLASHBACK DATABASE statement to retrieve the CUSTOMERS table as it was at SCN 663571.D
Execute another FLASHBACK TABLE statement to retrieve the CUSTOMERS table as it was at SCN 663571.
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.
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