Which two methods exist for enabling the collection of additional resource debugging information for specific resources controlled by Oracle 12c Clusterware?

• A. Use the crsctl set log res "resource_name=debugging_level2" command.
• B. Use the crsctl set trace res "resource_name=debugging_level" command.
• C. Set the environment variable _USA_ORA_DEBUG=1 and then stop and restart the resource that requires resource debugging data to be collected.
• D. Use the cluvfy comp command for the specific resource within a component.

Which three statements are true about the Global Resource Directory (GRD) in Oracle 12c RAC database and in Clustered ASM? (Choose three.)

• A. All GRD Enqueue Resource master metadata is held in the large pool of the same database instance.
• B. Only one GRD shadow resource may exist for an Enqueue Resource.
• C. Shadow GRD resources may exist in more than one database instance for a resource.
• D. Clustered ASM has GRD resources distributed among all ASM instances
• E. RAC databases have GRD cache resources distributed among all the database instances and stored in the shared pool of each instance.
• F. RAC databases have GRD cache resources distributed among all the database instances and stored in the large pool of each instance.
• G. All GRD Enqueue Resource master metadata is held in the shared pool of the same database instance.

Your flex cluster has these attributes:
1. Hub nodes host01 and host02
2. Leaf nodes host03 and host04
3. Full Featured GNS is configured and running.
You attempt to run this command to add two more nodes to the cluster:
$ ./addnode.sh -silent "CLUSTER_NEW_NODES={host05,host06}"
"CLUSTER_NEW_NODE_ROLES={hub,leaf}"
What is the result and the reason for this result?

• A. It fails because GNS doesn't assign VIPs for leaf nodes and no VIP was specified in the command.
• B. It fails because hub and leaf nodes may not be added by the same execution of addNode.sh.
• C. It succeeds because no VIP specification is required for leaf nodes and none need to be specified for hub nodes when using full featured GNS.
• D. It fails because no VIP was specified for the hub node host05.

Which three options have a RAC-specific tuning component?

• A. contention for archived redo log files
• B. the size of the online redo log buffers
• C. sequence definitions
• D. contention on index leaf blocks
• E. the load on the Cluster Interconnect
• F. contention for online redo log files

Which three statements are true about using ADVM volumes and mounting ACFS file systems from leaf nodes in a Flex Cluster? (Choose three.)

• A. An ADVM volume cannot be used as a boot device on a leaf node.
• B. An ADVM volume cannot be used as the root file system on a leaf node.
• C. To use ADVM volumes, an ASM proxy instance is not required on a leaf node.
• D. To use ADVM volumes on a leaf node, the oraclesacfs, oracleoks, and oracleadvm drivers must be loaded on all hub nodes.
• E. ADVM volumes can be used to store the OCR and voting les to be used by a leaf node.
• F. Partitioning ADVM-managed volumes using fdisk or other utilities on a leaf node is not supported.