Oracle Database 12c Advance Adminstration1z0-063 Test 3

Question : 38 of 40

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Which three statements are true about automated maintenance tasks? (Choose three.)

Predefined maintenance tasks consist of automatic optimizer statistics collection, running Automatic Segment Advisor, and running Automatic SQL Tuning Advisor.
A repository is maintained in the SYSTEM tablespace to store the history of execution of all tasks.
They run at predefined time intervals that are intended to occur during a period of low system loads.
An Oracle Scheduler job is created for each maintenance tasks that is scheduled to run in a maintenance window.
A maintenance window is automatically extended until all the maintenance tasks defined are completed

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