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Free Oracle 1z0-064 Exam Braindumps (page: 2)

Page 2 of 30
PDF with 119 Questions

Your database supports a mixed workload. The ERP application creates short sessions and performs small, random I/Os; the REPORTING application executes long-running DSS queries. You want to set a priority for the workload generated by the ERP application and optimize resource usage for them.
Which three objectives can be achieved by the Resource Manager? (Choose three.)

  1. limiting the amount of time that a session is idle and blocking other sessions of the ERP application
  2. limiting the amount of undo generated by operations performed by sessions created by the ERP application
  3. creating two resource plans with resource limits defined for the workload generated by the applications and automatically changing resource plans based on the workload
  4. allocating a lower percentage of CPU to sessions used by the REPORTING apnplication than to those used by the ERP application
  5. limiting the physical I/O performed by the sessions or users of the ERP application that are connected to the database

Answer(s): B,D,E



Examine the partial TKPROF output for an SQL statement:



Which two inferences can definitely be made from this output? (Choose two.)

  1. Array fetch operations were not performed for this query.
  2. No hard parse was performed for this query.
  3. The number of logical I/Os is almost equal to the number of physical I/Os.
  4. Another transaction held a shared lock on the table, thereby causing a significant delay.
  5. An uncommitted transaction made a series of updates to the NAME_ID column just before the execution of this query.

Answer(s): B,D



In your database, the measured 99th percentile value is used as the maximum value. You set a warning threshold level of 110% of maximum trigger as an alert.
What is the outcome? (Choose the best answer.)

  1. It generates an error because the warning threshold cannot exceed 100%.
  2. It generates an error because the percentage of maximum threshold cannot be set with a significance-level threshold value.
  3. It generates an alert when an observed metric is 99% of the 99th percentile value as measured over the moving window baseline.
  4. It generates an alert when an observed metric is 110% of the 99th percentile value as measured over the moving window baseline.
  5. It generates an alert when 1 in 100 observations for an observed metric exceeds the 99th percentile value as measured over the fixed baseline.

Answer(s): A



You want to capture AWR data to monitor performance variation every Monday between 9:00 AM and 12:00 PM for three months and automatically remove the older AWR data every fortnight. How would you achieve this? (Choose the best answer.)

  1. Create AWR baselines.
  2. Create SQL plan baselines.
  3. Create repeating baseline templates.
  4. Create database services and make sure that user connections use them to connect to the database instance.
  5. Create a single baseline template.

Answer(s): D






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