OCP 1Z0 053 58

58.Which statement is true when Automatic Workload Repository (AWR) baselines are created using 

baseline templates? 

A. AWR baselines are always created as repeating baselines. 

B. AWR baselines can be created on the basis of two time values. 

C. AWR baselines are always created with infinite expiration duration. 

D. AWR baselines are always created using the Automatic Workload Repository (AWR) retention period 

as expiration duration. 

Answer: B 

http://docs.oracle.com/cd/E11882_01/server.112/e41573/autostat.htm#PFGRF94180

5.2.2.3 Baseline Templates

You can also create baselines for a contiguous time period in the future using baseline templates. There are two types of baseline templates: single and repeating.

You can use a single baseline template to create a baseline for a single contiguous time period in the future. This technique is useful if you know beforehand of a time period that you intend to capture in the future. For example, you may want to capture the AWR data during a system test that is scheduled for the upcoming weekend. In this case, you can create a single baseline template to automatically capture the time period when the test occurs.

You can use a repeating baseline template to create and drop baselines based on a repeating time schedule. This is useful if you want Oracle Database to automatically capture a contiguous time period on an ongoing basis. For example, you may want to capture the AWR data during every Monday morning for a month. In this case, you can create a repeating baseline template to automatically create baselines on a repeating schedule for every Monday, and automatically remove older baselines after a specified expiration interval, such as one month.