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Question 42

Which three statements are true about the Global Resource Directory (GRD) in Oracle 19c RAC database and in Clustered ASM? (Choose three.)

Only one GRD shadow resource may exist for an Enqueue Resource.

Shadow GRD resources may exist in more than one database instance for a resource.

Clustered ASM has GRD resources distributed among all ASM instances.

All GRD Enqueue Resource master metadata is held in the large pool of the same database instance.

All GRD Enqueue Resource master metadata is held in the shared pool of the same database instance.

RAC databases have GRD cache resources distributed among all the database instances and stored in the large pool of each instance.

RAC databases have GRD cache resources distributed among all the database instances and stored in the shared pool of each instance.

Correct Answer: B, C, G

The correct answers are based on the understanding of the Global Resource Directory (GRD) in Oracle 19c RAC databases and Clustered ASM. First, shadow GRD resources may exist in more than one database instance for a resource, indicating B is correct. Second, Clustered ASM has GRD resources distributed among all ASM instances, which makes C valid. Finally, RAC databases have GRD cache resources distributed among all the database instances and stored in the shared pool of each instance, confirming that G is also correct. The other options either misinterpret the storage locations or distributions of the GRD resources.

Discussion

Test_1Options: BCG

BCG is correct

krwi1Options: BCG

F is wrog