单选题You plan to have a larger moving window size for the default system-defined moving window baseline because you want to use the adaptive threshold. Which statement factors in this consideration while increasing the size of the moving window?()A The coll

题目
单选题
You plan to have a larger moving window size for the default system-defined moving window baseline because you want to use the adaptive threshold. Which statement factors in this consideration while increasing the size of the moving window?()
A

The collection level for the AWR should be set to BASIC

B

The moving window size must be less than Undo Retention

C

The moving window size should be greater than the Automatic Workload Repository (AWR) retention period

D

The moving window size should be equal to or less than the Automatic Workload Repository (AWR) retention period

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相似问题和答案

第1题:

Which statements are true regarding the system-defined moving window baseline in Oracle Database 11g?()

A. It does not allow you to change the moving window size.

B. Adaptive threshold functionalities use it by default to compute statistics.

C. It is created by default with the window size being equal to the AWR retention time.

D. It is created when the first snapshot is collected by the Automatic Workload Repository (AWR).


参考答案:B, C

第2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3题:

View the Exhibit that sets the threshold for the Current Open Cursors Count metric.Why is the Significance Level threshold type not available in the threshold setting?()

A. because AWR baseline is not enabled

B. because Current Open Cursors Count is not a basic metric

C. because the STATISTICS_LEVEL parameter is set to BASIC

D. because the AWR baseline is a system-defined moving window baseline


参考答案:B

第4题:

A server is connected to a gigabit Ethernet switch and has negotiated 1Gbps / Full Duplex. When transferring large files to and from other servers on the segment via FTP slow performance is noticed.All network cabling,network hardware and server hardware were verified to be working correctly.  Which of the following could be done to improve performance?()

  • A、 Decrease the TCP window size.
  • B、 Increase the UDP window size.
  • C、 Increase the TCP window size.
  • D、 Decrease the UDP window size.

正确答案:C

第5题:

You plan to have a larger moving window size for the default system-defined moving window baseline because you want to use the adaptive threshold. Which statement factors in this consideration while increasing the size of the moving window?()

  • A、The collection level for the AWR should be set to BASIC
  • B、The moving window size must be less than Undo Retention
  • C、The moving window size should be greater than the Automatic Workload Repository (AWR) retention period
  • D、The moving window size should be equal to or less than the Automatic Workload Repository (AWR) retention period

正确答案:D

第6题:

You plan to control the sessions performing a huge number of I/O operations. Your requirement is to kill the session when it exceeds a specified number of I/Os. Which statement describes a solution to the above?()

A. Set a threshold for the default system-defined moving window baseline.

B. Add directives to the Automatic Database Diagnostic Monitor (ADDM).

C. Modify the profile for the targeted users for which control needs to be imposed.

D. Implement the database resource manager to add the SWITCH_IO_REQS and SWITCH_GROUP directives.


参考答案:D

第7题:

You notice that the elapsed time for an important database scheduler Job is unacceptably long.The job belongs to a scheduler job class and window.Which two actions would reduce the job‘s elapsed time?()

A. Increasing the priority of the job class to which the job belongs

B. Increasing the job‘s relative priority within the Job class to which it belongs

C. Increasing the resource allocation for the consumer group mapped to the scheduler job‘s job class within the plan mapped to the scheduler window

D. Moving the job to an existing higher priority scheduler window with the same schedule and duration

E. Increasing the value of the JOB_QUEUE_PROCESSES parameter

F. Increasing the priority of the scheduler window to which the job belongs


参考答案:B, C

第8题:

You plan to have a larger moving window size for the default system-defined moving window baseline because you want to use the adaptive threshold. Which statement factors in this consideration while increasing the size of the moving window?()

A. The collection level for the AWR should be set to BASIC

B. The moving window size must be less than Undo Retention

C. The moving window size should be greater than the Automatic Workload Repository (AWR) retention period

D. The moving window size should be equal to or less than the Automatic Workload Repository (AWR) retention period


参考答案:D

第9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.

正确答案:A

第10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

正确答案:A,B

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