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多选题
To set the history retention period for either window logging or job logging individually， which parameters of the SET_SCHEDULER_ATTRIBUTE procedure need to be used？（）
A
LOG_HISTORY
B
JOB_LOG_RETENTION
C
WINDOW_LOG_RETENTION
D
WHICH_LOG
E
LOG_NAME
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To set the history retention period for either window logging or job logging individually, which parameters of the SET_SCHEDULER_ATTRIBUTE procedure need to be used?()
A. LOG_HISTORYB. JOB_LOG_RETENTIONC. WINDOW_LOG_RETENTIOND. WHICH_LOGE. LOG_NAME
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To set the history retention period for either window logging or job logging individually, which parameters of the SET_SCHEDULER_ATTRIBUTE procedure need to be used?（）A、LOG_HISTORYB、JOB_LOG_RETENTIONC、WINDOW_LOG_RETENTIOND、WHICH_LOGE、LOG_NAME
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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
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单选题In Recovery Manager （RMAN）， you set the retention policy to NONE by executing the following command： CONFIGURE RETENTION POLICY TO NONE; What would be the impact of this setting？（）A
The retention policy is cleared.B
RMAN does not consider any backup as obsolete.C
The retention policy is set to its default setting of redundancy 1.D
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单选题The Automatic Database Diagnostic Monitor （ADDM） analysis runs every 60 minutes on your database. Your database is facing a series of interrelated problems over a period of two hours. You need to ensure that the ADDM analysis is run over a time span of two hours in future. What would you do？（）A
Create two custom ADDM tasks.B
Modify the AWR snapshot time interval to two hours.C
Create a new scheduler window for a time period of two hours.D
Modify the Automatic Workload Repository （AWR） snapshot retention period to two hours.
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单选题The Automatic Database Diagnostic Monitor (ADDM) analysis runs every 60 minutes on your database. Your database is facing a series of interrelated problems over a period of two hours. You need to ensure that the ADDM analysis is run over a time span of two hours in future. What would you do?（）A
Create two custom ADDM tasks.B
Modify the AWR snapshot time interval to two hours.C
Create a new scheduler window for a time period of two hours.D
Modify the Automatic Workload Repository (AWR) snapshot retention period to two hours.
考题
多选题To set the history retention period for either window logging or job logging individually, which parameters of the SET_SCHEDULER_ATTRIBUTE procedure need to be used?（）ALOG_HISTORYBJOB_LOG_RETENTIONCWINDOW_LOG_RETENTIONDWHICH_LOGELOG_NAME
考题
单选题Which statement is true about the UNDO_RETENTION parameter when retention guarantee is notenabled（）A
It is the time period after which the undo data becomes obsolete.B
It is the time period after which the committed undo data would be transferred to a temporarytablespace.C
It is the minimum time period up to which the committed undo data would be retained if free undo spaceis available.D
It is the time period after which the undo data is transferred to the Flash Recovery Area to provide readconsistency.
考题
单选题Initially， for the Automatic Workload Repository （AWR） statistics，the retention period is set to 7 days， the collection interval is set to 30 minutes and the collection level is set to Typical in your production database. You have been using the Memory Advisor for the last three months to generate recommendations for tuning memory components. However，when you observe the Memory Advisor on a Friday，you find that the statistics are available only for two days， Thursday and Friday，of that week. What would have caused the statistics to be removed？（）A
On Wednesday， the statistics have been purged.B
On Wednesday， the retention period has been set to zero.C
On Wednesday， the collection interval has been set to zero.D
On Wednesday， the collection level has been changed to All.E
On Wednesday， the retention period has been set to one day.F
On Wednesday， the retention period has been set to two daysG
On Wednesday, the collection level has been changed to Typical.H
On Wednesday, the collection interval has been set to 1440 minutes.
考题
单选题You want to track and store all transactional changes to a table over its lifetime. To accomplish this task, you enabled Flashback Data Archive with the retention of 5 years. After some time, the business requirement changed and you are asked to change the retention period from 5 years to 3 years. To accomplish this, you issued the following command: ALTER FLASHBACK ARCHIVE fla1 MODIFY RETENTION 3 YEARS; What is the outcome of this command?（）A
The command produces an error because the retention period cannot be reducedB
All historical data older than 3 years is purged from the flashback archive FLA1C
All historical data is retained but the subsequent flashback data archives are maintained for only 3 yearsD
All historical data is transferred to flashback logs and the flashback archive is refreshed to set a new retention time
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多选题Your database instance is functional for the past one month. The Automatic Workload Repository（AWR） snapshot retention is set to 7 and the STATISTICS_LEVEL initialization parameter is set to TYPICAL. You receive a complaint about the poor performance of the database between 7 PM and 9 PM of theprevious day. Choose two actions any of which can be referred to first to diagnose the problem. （）AUse the Active Session History report.BUse the AWR Compare Periods report.CUse an ADDM analysis between 7 PM and 9 PM of the previous day.DUse the AWR Compare Period report between 7 PM and 9 PM of the previous day.
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单选题What qualification is NOT mentioned as a preference?A
Knowledge of stage set designB
Expertise in the history of theaterC
Experience in making period costumesD
A university degree in a related field
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