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单选题
You have created a baseline metric， DISK_IO_BL， for the disk I/O metrics in your PROD database and you have been getting notifications whenever the database performance degrades. You optimize the database I/O to gain the performance and you decide to remove the baseline metrics. Which method would you use to remove the DISK_IO_BL baseline metrics？（）
A
The baseline， once created， cannot be removed.
B
Disable the baseline metrics in the Database Control Manage Metrics page.
C
The baseline will be automatically removed once the database performance has been optimized.
D
Drop the baseline metrics by usingDBMS_WORKLOAD_REPOSITORY.DROP_BASELINE procedure.
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更多 “单选题You have created a baseline metric， DISK_IO_BL， for the disk I/O metrics in your PROD database and you have been getting notifications whenever the database performance degrades. You optimize the database I/O to gain the performance and you decide to remove the baseline metrics. Which method would you use to remove the DISK_IO_BL baseline metrics？（）A The baseline， once created， cannot be removed.B Disable the baseline metrics in the Database Control Manage Metrics page.C The baseline will be automatically removed once the database performance has been optimized.D Drop the baseline metrics by usingDBMS_WORKLOAD_REPOSITORY.DROP_BASELINE procedure.” 相关考题
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A primary key must have been created.B
A mapping table must have been created.C
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考题
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A primary key must have been created.B
A mapping table must have been created.C
An overflow tablespace must have been specified.D
The PCTTHRESHOLD option must have been specified.
考题
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A window must have been created with the WEEKEND_PLAN resource plan.B
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单选题You work as a database administrator for Supportcenter.cn. You want to be notified when the number of disk I/O increases by 10% of what it was yesterday. You create a baseline metric for yesterday’s disk I/O performance. How do you use the baseline metrics to achieve your objective？（）A
Save the baseline in the databaseB
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单选题You plan to set up the Automatic Workload Repository (AWR) baseline metric thresholds for a moving window baseline. Which action would you take before performing this task?（）A
Compute the baseline statistics.B
Take an immediate AWR snapshot.C
Decrease the window size for the baseline.D
Decrease the expiration time for the baseline.
考题
单选题What is the net effect of the following command？（） alter diskgroup dgroup1 drop disk abc；A
The disk ABC will be dropped from the disk group. Since you did not issue a rebalance command，the data on that disk will be lost.B
The command will raise an error indicating that you need to rebalance the disk group to remove the data from that disk prior to dropping the disk.C
The disk group will be automatically rebalanced during the drop operation. Once the rebalancing is complete，the disk will be dropped.D
This command will fail because you cannot drop a specific disk in an ASM disk group.E
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