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View the Exhibit to examine the output produced by the following query at three different times since the database instance started and has experienced workloads of different capacities: SQL> SELECT substr(component, 0, 10) COMP, current_size CS, user_specified_size US FROM v$memory_dynamic_components WHERE current_size!=0; What do you infer from this? Exhibit:
Correct Answer: C
Explanation/Reference: Explanation: MEMORY_TARGET specifies the Oracle system-wide usable memory. The database tunes memory to the MEMORY_TARGET value, reducing or enlarging the SGA and PGA as needed. In a text-based initialization parameter file, if you omit MEMORY_MAX_TARGET and include a value for MEMORY_TARGET, then the database automatically sets MEMORY_MAX_TARGET to the value of MEMORY_TARGET. If you omit the line for MEMORY_TARGET and include a value for MEMORY_MAX_TARGET, the MEMORY_TARGET parameter defaults to zero. After startup, you can then dynamically change MEMORY_TARGET to a nonzero value, provided that it does not exceed the value of MEMORY_MAX_TARGET.