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多选题
Your database instance is running with full workload after database creation. You have decided to use a fixed-size undo tablespace. You want to use the Undo Advisor to estimate the capacity of the undo tablespace. Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace（）
A
The retention period to support flashback
B
The expected length of the longest-running query
C
The number of undo tablespaces in the database
D
The size of the Flash Recovery Area for the database instance
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更多 “多选题Your database instance is running with full workload after database creation. You have decided to use a fixed-size undo tablespace. You want to use the Undo Advisor to estimate the capacity of the undo tablespace. Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace（）AThe retention period to support flashbackBThe expected length of the longest-running queryCThe number of undo tablespaces in the databaseDThe size of the Flash Recovery Area for the database instance” 相关考题
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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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Your database instance is running with full workload after database creation. You have decided to useafixed-sizeundo tablespace. You want to use the Undo Advisor to estimate the capacity of the undotablespace. Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace（）A、the retention period to support flashbackB、the expected length of the longest-running queryC、the number of undo tablespaces in the databaseD、the size of the Flash Recovery Area for the database instance
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Your database instance is running with full workload after database creation. You have decided to use a fixed-size undo tablespace. You want to use the Undo Advisor to estimate the capacity of the undo tablespace. Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace（）A、The retention period to support flashbackB、The expected length of the longest-running queryC、The number of undo tablespaces in the databaseD、The size of the Flash Recovery Area for the database instance
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You are maintaining your OLTP database in Oracle10g. You are performing the Flashback Transaction Query to find the undo SQL statements that can be used to undo the changes made to the database in the specific time period. Which pseudocolumn will you use to perform the Flashback Transaction Query？（）A、 VERSIONS_STARTSCNB、 VERSIONS_STARTTIMEC、 VERSIONS_XIDD、 VERSIONS_OPERATION
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You are maintaining the SALES database for eSoft Corporation. You have not configured ASMM on the database. You want to know what size of the SGA will provide the best performance. Which advisor would you use to determine the suitable size of the SGA？（）A、 SQL Tuning AdvisorB、 Undo AdvisorC、 ADDMD、 Memory Advisor
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You work as a database administrator for Certkiller .com. You want to create your database with the automatic undo management feature enable.Which two tasks must you perform to achieve this？（）A、Set the UNDO_RETENTION parameter to AUTO.B、Create an initial undo segment in undotablespace.C、Set the UNDO_RETENTION parameter to 900 or moreD、Set the initialization parameter UNDO_MANAGEMENT to AUTOE、Set the UNDO_MANAGEMENT parameter to the name of an undotablespace
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Your database is running under automatic undo management and the UNDO_RETENTION parameter is set to 900 sec. You executed the following command to enable retention guarantee： SQL ALTER TABLESPACE undotbs1 RETENTION GUARANTEE; What effect would this statement have on the database？（）A、The extents in undo tablespace retain data until the next full database backup.B、The extents containing committed data in the undo tablespace are never overwritten.C、The extents which no longer contain uncommitted data in the undo tablespace are not overwritten for at least15 minutes.D、The extents containing committed data in the undo tablespace are not overwritten until the instance is shut down.
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You noticed that the index tablespace in your database requires a recovery. However， instead of performing a media recovery， you decided to re-create the indexes in a new tablespace. Which two options would you use to reduce the time it takes to re-create the indexes？（）A、 ONLINEB、 REVERSEC、 PARALLELD、 COMPRESSE、 NOLOGGINGF、 COMPUTE STATISTICS
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You are maintaining your database in Oracle10g. You perform a full user-managed backup every Sunday at 8：00 P.M. Your database is running in ARCHIVELOG mode. On Monday， at 9：00 A.M.， a tablespace is dropped. You decide to perform incomplete recovery to recover the dropped tablespace. Which two clauses can you use with the RECOVER command？（）A、 UNTIL SEQUENCEB、 UNTIL SCNC、 UNTIL CHANGED、 UNTIL CANCEL
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You require the Oracle server to manage the undo segments and space among various active sessions automatically. You created an undo tablespace， UNDO_TBS1， in your database. Which two additional steps would you perform to achieve this？（）A、Set the UNDO_RETENTION parameter to 900 or more.B、Create an initial undo segment in the undo tablespace.C、Enable the retention guarantee for the undo tablespace.D、Set the UNDO_TABLESPACE parameter to UNDO_TBS1.E、Set the UNDO_MANAGEMENT initialization parameter to AUTO.
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Your database instance is configured with automatic undo management and the UNDO_RETENTION parameter is set to 900 seconds. You executed the following command to enable retention guarantee： SQL ALTER TABLESPACE undotbs1 RETENTION GUARANTEE； What effect would this command have on the database（）A、The extents in the undo tablespace retain data until the next full database backup.B、The extents containing committed undo in the undo tablespace are not overwritten for at least 15minutes.C、The extents containing committed data in the undo tablespace are not overwritten until the instance isshut down.D、The extents containing committed undo in the undo tablespace are transferred to Flash Recovery Areabefore being overwritten.
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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
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You have a long-running process you want to assign to a specific UNDO segment brought online for that express purpose. You are not using automatic UNDO management. What statement can be used for this task? （）A、ALTER DATABASE B、SET TRANSACTION C、ALTER ROLLBACK SEGMENT D、ALTER TABLE
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单选题You have 100 segments in the USERS tablespace. You get an alert that the USERS tablespace is running low on space. You decide to shrink some segments. Which option would you use to determine which segments to shrink?（）A
Segment Advisor B
SQL Tuning Advisor C
SQL Access Advisor D
Segment Resource Estimation E
Automatic Database Diagnostic Monitor (ADDM)
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单选题Your database instance is configured with automatic undo management and the UNDO_RETENTION parameter is set to 900 seconds. You executed the following command to enable retention guarantee： SQL ALTER TABLESPACE undotbs1 RETENTION GUARANTEE； What effect would this command have on the database（）A
The extents in the undo tablespace retain data until the next full database backup.B
The extents containing committed undo in the undo tablespace are not overwritten for at least 15minutes.C
The extents containing committed data in the undo tablespace are not overwritten until the instance isshut down.D
The extents containing committed undo in the undo tablespace are transferred to Flash Recovery Areabefore being overwritten.
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单选题You are maintaining your OLTP database in Oracle10g. You are performing the Flashback Transaction Query to find the undo SQL statements that can be used to undo the changes made to the database in the specific time period. Which pseudocolumn will you use to perform the Flashback Transaction Query？（）A
VERSIONS_STARTSCNB
VERSIONS_STARTTIMEC
VERSIONS_XIDD
VERSIONS_OPERATION
考题
多选题You are maintaining your database in Oracle10g. You perform a full user-managed backup every Sunday at 8：00 P.M. Your database is running in ARCHIVELOG mode. On Monday， at 9：00 A.M.， a tablespace is dropped. You decide to perform incomplete recovery to recover the dropped tablespace. Which two clauses can you use with the RECOVER command？（）AUNTIL SEQUENCEBUNTIL SCNCUNTIL CHANGEDUNTIL CANCEL
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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.
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多选题You lost the index tablespace in your database. You decided to re-create the index tablespace and the indexes in the tablespace. What methods can you use to re-create the indexes？（）ASQL scriptsBRecovery Manager （RMAN） scriptCData PumpDSQL*LoaderEFlashback database
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多选题Your database instance is running with full workload after database creation. You have decided to use a fixed-size undo tablespace. You want to use the Undo Advisor to estimate the capacity of the undo tablespace. Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace（）AThe retention period to support flashbackBThe expected length of the longest-running queryCThe number of undo tablespaces in the databaseDThe size of the Flash Recovery Area for the database instance
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单选题You are maintaining the SALES database for eSoft Corporation. You have not configured ASMM on the database. You want to know what size of the SGA will provide the best performance. Which advisor would you use to determine the suitable size of the SGA？（）A
SQL Tuning AdvisorB
Undo AdvisorC
ADDMD
Memory Advisor
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多选题Your database instance is running with full workload after database creation. You have decided to useafixed-sizeundo tablespace. You want to use the Undo Advisor to estimate the capacity of the undotablespace. Which two factors must you consider before using the Undo Advisor to estimate the capacity of the undotablespace（）Athe retention period to support flashbackBthe expected length of the longest-running queryCthe number of undo tablespaces in the databaseDthe size of the Flash Recovery Area for the database instance
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单选题Your database is running under automatic undo management and the UNDO_RETENTION parameter is set to 900 sec. You executed the following command to enable retention guarantee： SQL ALTER TABLESPACE undotbs1 RETENTION GUARANTEE; What effect would this statement have on the database？（）A
The extents in undo tablespace retain data until the next full database backup.B
The extents containing committed data in the undo tablespace are never overwritten.C
The extents which no longer contain uncommitted data in the undo tablespace are not overwritten for at least15 minutes.D
The extents containing committed data in the undo tablespace are not overwritten until the instance is shut down.
考题
多选题You require the Oracle server to manage the undo segments and space among various active sessions automatically. You created an undo tablespace， UNDO_TBS1， in your database. Which two additional steps would you perform to achieve this？（）ASet the UNDO_RETENTION parameter to 900 or more.BCreate an initial undo segment in the undo tablespace.CEnable the retention guarantee for the undo tablespace.DSet the UNDO_TABLESPACE parameter to UNDO_TBS1.ESet the UNDO_MANAGEMENT initialization parameter to AUTO.
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多选题You noticed that the index tablespace in your database requires a recovery. However， instead of performing a media recovery， you decided to re-create the indexes in a new tablespace. Which two options would you use to reduce the time it takes to re-create the indexes？（）AONLINEBREVERSECPARALLELDCOMPRESSENOLOGGINGFCOMPUTE STATISTICS
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多选题You work as a database administrator for Certkiller .com. You want to create your database with the automatic undo management feature enable.Which two tasks must you perform to achieve this？（）ASet the UNDO_RETENTION parameter to AUTO.BCreate an initial undo segment in undotablespace.CSet the UNDO_RETENTION parameter to 900 or moreDSet the initialization parameter UNDO_MANAGEMENT to AUTOESet the UNDO_MANAGEMENT parameter to the name of an undotablespace
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多选题You noticed that the index tablespace in your database requires a recovery. However， instead of performing a media recovery， you decided to re/x7fcreate the indexes in a new tablespace. Which two options would you use to reduce the time it takes to re/x7fcreate the indexes？（）AONLINEBREVERSECPARALLELDCOMPRESSENOLOGGINGFCOMPUTE STATISTICS
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