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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) 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.
C) To delete an instance, start the DBCA on a node other than the node that hosts the instance that you want to delete.
D) The DBCA can be used to delete an instance from a RAC database.

2. View the Exhibit.
You are required to support your Oracle RAC configuration using ASM and RAID technology. You plan to discuss the storage configuration with the storage technology team. They have proposed a configuration as shown in the exhibit with a separate set of LUNs for the data disk group and the flash recovery area disk group and a 500 KB stripe size in line with other non-Oracle LUNs. The Data disk group has four250G LUNs and the FRA disk group has four500G LUNS, both of which are mirrored.

A) I/O to the flash recovery area disk group for backups may cause performance issues when full table scans are occurring during batch workloads.
B) Index Range Scans would cause I/O to many different physical disks.
C) Retention policies that require backups to be kept for long time periods may cause wasted space due to large allocation units.
D) The LUNs are not aligned with ASM Allocation Units, which may lead to I/O bottlenecks.

3. Which two statements are true in a RAC environment? (Choose two.)

A) After you create a service using SRVCTL, you need to start it with a separate command.
B) After you create a service, you need to enable it for CRS to manage it.
C) When using DBCA to create a service, you do not need to add the corresponding TNS entry in your tnsnames.ora on the cluster nodes.
D) When using SRVCTL to create a service, you do not need to add the corresponding TNS entry in your tnsnames.ora.
E) After you create a service using Database Configuration Assistant (DBCA), you need to start it with a separate command.

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. You have attended a user group presentation on RAC and based on what you have learned you feel that your company would benefit from having the RAC option to meet its Oracle database requirements in several ways. Your manager does not know much about RAC and asks you to create a presentation to the team explaining RAC, and whether it should be implemented in your installation. Which three statements explain the benefits and implications of RAC? (Choose three.)

A) RAC would increase availability in the event of a network failure.
B) RAC alone would not help protect from human errors.
C) RAC alone would increase availability when doing release upgrades.
D) RAC would increase availability in the event of data failures.
E) RAC used in conjunction with parallel execution may provide speedup of DSS queries.
F) RAC would increase availability in the event of node and instance failures.
G) RAC would increase scalability for all application workloads in all cases.
H) RAC used in conjunction with parallel execution may provide for speedup of OLTP workload processes.

Solutions: