READ Free Dumps For Oracle- 1z0-062
Question ID 21715 | Which three factors influence the optimizer's choice of an execution plan? |
Option A | the optimizer_mode initialization parameter |
Option B | operating system (OS) statistics |
Option C | cardinality estimates |
Option D | object statistics in the data dictionary |
Option E | fixed baselines |
Correct Answer | A,B,D |
Question ID 21716 | Examine the resources consumed by a database instance whose current Resource Manager plan is displayed. |
Option A | An attempt to start a new session by a user belonging to DSS_QUERIES fails with an error. |
Option B | An attempt to start a new session by a user belonging to OTHE_GROUPS fails with an error. |
Option C | The CPU_WAIT_TIME column indicates the total time that sessions in the consumer group waited for the CPU due to resource management |
Option D | The CPU_WAIT_TIME column indicates the total time that sessions in the consumer group waited for the CPU due to I/O waits and latch or enqueue contention. |
Option E | A user belonging to the DSS__QUERIES resource consumer group can create a new session but the session will be queued. |
Correct Answer | C,E |