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Oracle Database 10g R2: Administering RAC Sample Questions:

1. Which three statements about deleting instances from a RAC database on a UNIX platform are true? (Choose three.)

A) To delete an instance, start the DBCA on the node that hosts the instance that you want to delete.
B) To delete an instance, start the DBCA on a node other than the node that hosts the instance that you want to delete.
C) The DBCA can be used to delete an instance from a RAC database.
D) During a delete operation, the DBCA removes the instance and the instance Oracle Net configurationDuring a delete operation, the DBCA removes the instance and the instance? Oracle Net configuration.

2. You are asked to design a Maximum Availability Solution for a RAC configuration that provides for continuous availability for the Oracle database and which can survive instance failures, node failures, data failures, and site failures. The RAC configuration has a four-node cluster with five different services configured. Performance must be maintained for any failure situation for all the services, and all data must be preserved. All the servers in the configuration will have the same hardware. Which configuration would you recommend?

A) Symmetric RAC and a Physical Standby Database in a Dataguard configuration with RAC and ASM at all sites with the same number of instances and the same service preferences
B) Asymmetric RAC and Dataguard configuration with a mixture of RAC and single instances using ASM at all sites with the same service preferences
C) Asymmetric RAC and a Physical Standby Database in a Dataguard configuration with RAC and ASM at all sites with the same number of instances but different service preferences
D) Asymmetric RAC and a Logical Standby Database in a Dataguard configuration with RAC and ASM at all sites with the same number of instances but different service preferences

3. Which two initialization parameters must be set to start up an ASM instance in a RAC environment? (Choose two.)

A) CLUSTER DATABASE
B) INSTANCE_TYPE
C) ASM_POWER_LIMIT
D) B_UNIQUE_NAME
E) ASM_DISKGROUPS
F) ASM_DISKSTRING

4. The following are the steps that you have taken so far in a two-node RAC implementation:
1) Completed the preinstallation tasks
2) Performed Oracle Clusterware installation
View the Exhibit and examine the current status of a list of resources on each node.
Your next step is to install the Oracle Database 10g software on these nodes. Which statement is
true about running Oracle Universal Installer (OUI) and installing the software in this situation?

A) You run OUI from any node and the installer would prompt you to run the crs_start command to start the resources that are offline.
B) You must run OUI from the first node ora....17a because running it from the second node ora....17b would result in an error.
C) You run OUI from any node and the software would be installed on both the nodes successfully.

5. In a RAC environment, you see a steep increase for enq:HW- contention and gc current grant wait events. What would you do to fix this issue?

A) Increase the cache size of sequences.
B) Use larger uniform extent sizes for objects.
C) Reduce the time of transactions by committing more often.
D) Reduce the number of updates causing locks on tables accessed by multiple instances.

Solutions: