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You have created a baseline metric， DISK_IO_BL， for the disk

题目
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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相似问题和答案

第1题：

The following output exists on Router R1, a router internal to area 1. What can you d etermine as true from the output of the show ip ospf database summary command?()

A. The LSA was created by an ABR due to an area range command.

B. The LSA was created by an ASBR due to a summary - address command.

C. If cr eated by an area range command, the best metric for a subordinate subnet on that ABR must have been 11.

D. None of the other answers is correct.


参考答案：D

第2题：

While designing your database， you have created the EMPLOYEES table as an index/x7forganized table （IOT）. You want to create a bitmap index on the JOB_ID column to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）

  • A、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.

正确答案:B

第3题：

We are pleased to confirm()with you the transaction of 3,000 metric tons soybean.

A、having concluded

B、to have concluded

C、having come to terms

D、tohave carried out


参考答案：A

第4题：

Your database is configured on non-ASM disk storage. You need to migrate your database to ASM disk storage.  Which statement is true about migrating from non-ASM disk storage to ASM disk storage？（） 

  • A、 You can use the operating system utility to migrate from non-ASM disk storage to ASM disk storage.
  • B、 You cannot perform a database backup from non-ASM disk storage to tape and then move it to ASM disk storage.
  • C、 You can use the SWITCH DATABASE TO COPY Recovery Manager （RMAN） command to switch back to non-ASM disk storage if you have not deleted your original datafiles.
  • D、 You cannot use Recovery Manager （RMAN） to migrate from non-ASM disk storage to ASM disk storage if you are not using RMAN for your backup and recovery strategies.

正确答案:C

第5题：

You are an Oracle DBA responsible for an ASM instance. The disk controller on your system fails. You suspect that the disk itself is okay. You know it will take 24 hours to replace the controller and you don’t want to have to rebuild the disks from scratch.  What do you do？（）  

  • A、 Take the whole disk group offline and wait for the controller card to be installed. Once it’s installed，bring the disk group online again.
  • B、 Change the ASM parameter ASM_PREFERRED_READ_FAILURE_GROUPS to indicate that you want to read from the non-failed disk. Once the disk controller is replaced，reset the parameter to  its original value.
  • C、 You have no choice but to rebuild the disk. Drop the disk from the disk group and wait for the controller to be replaced. Once the controller is replaced， add the disk back into the disk group and allow ASM to rebuild it.
  • D、 If you are using any setting other than REDUNDANCY EXTERNAL for your disk group，you will have to recover any data on that disk from a backup. The database will be unavailable until you can  correct the problem and perform recovery.
  • E、 Change the attribute DISK_REPAIR_TIME on the disk group to a time greater than 24 hours.

正确答案:E

第6题：

You want the redistributed EIGRP AS 10 routes to have an administrative distance of 121 when they appear as RIP routes in the routing table of A1.Which command should you use on a router to accomplish this goal?（）

A. redistribute eigrp 10 metric 121

B. redistribute rip metric 121

C. default - metric 121

D. distance 121 10.1.1.6 0.0.0.0


参考答案：D

第7题：

While designing your database， you have created the EMPLOYEEStable as an index-organized （IOT）. You want to create a bitmap index on the JOD_IDcolumn to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）

  • A、 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.

正确答案:B

第8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.


参考答案：A

第9题：

Using Oracle Scheduler you have scheduled two jobs， JOB_A and JOB_B， to run at 9：00 p.m. every Friday. You want both the jobs to use a single resource plan， WEEKEND_PLAN. Which task must have already been performed to enable you to achieve this objective？（）

  • A、 A window must have been created with the WEEKEND_PLAN resource plan.
  • B、 A program must have been created with the WEEKEND_PLAN resource plan.
  • C、 A job class must have been created with the WEEKEND_PLAN resource plan.
  • D、 A windows group must have been created with the WEEKEND_PLAN resource plan.

正确答案:A

第10题：

You have a server named Server1 that runs a Server Core Installation of Windows Server 2012 R2. You attach a 4-TB disk to Server1. The disk is configured as an MBR disk. You need to ensure that you can create a 4-TB volume on the disk. Which Diskpart command should you use？（）

  • A、Automount
  • B、Convert
  • C、Expand
  • D、Attach

正确答案:B

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