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Oracle Database 10g R2: Administering RAC Sample Questions:

1. You have a three-tier architecture for your application, which uses an Oracle RAC database and a middle tier that uses Oracle Application Server with Java programming, using JDBC as the standard. There are three RAC services defined, and four instances in the database are using ASM as the cluster file system. Connection pools are also used. Which three features of Fast Application Notification would be beneficial in your environment, and which choices for your application would you recommend? (Choose three.)

A) ODP.Net connection pool
B) Load Balancing Advisory FAN events to control ASM I/O workload
C) the continuous availability of services due to FAN events
D) the App Server Up and Down FAN event notifications
E) JDBC Implicit Connection Cache
F) Load Balancing Advisory FAN events to control workload per instance for each service

2. You decide to implement a Dataguard configuration for your RAC installation to support your disaster recovery architecture. There are two instances on the primary and two on the physical standby. Which are the two appropriate settings for the DG_BROKER_CONFIG_FILE1 and DG_BROKER_CONFIG_FILE2 initialization parameters? (Choose two.)

A) DG_BROKER_CONFIG_FILE1 set to a nonshared location for each secondary database instance and DG_BROKER_CONFIG_FILE2 set to a shared location for each secondary database instance on the secondary database cluster.
B) DG_BROKER_CONFIG_FILE1 set to a location shared between each primary database instance and DG_BROKER_CONFIG_FILE2 set to a different location shared between each primary database instance on the primary database cluster.
C) DG_BROKER_CONFIG_FILE2 set to the same shared location for the second instance of both the primary and the standby databases.
D) DG_BROKER_CONFIG_FILE1 set to a nonshared location for each primary database instance and DG_BROKER_CONFIG_FILE2 set to a shared location for each primary database instance on the primary database cluster.
E) DG_BROKER_CONFIG_FILE1 set to a location shared between each standby database instance and DG_BROKER_CONFIG_FILE2 set to a different location shared between each standby database instance on the standby database cluster.
F) DG_BROKER_CONFIG_FILE1 set to the same shared location shared between the first instance of both the primary and the standby databases.

3. You are implementing a three-node RAC setup in your company. You have already performed these tasks:
1) Hardware and OS configuration 2) Cluster file system installation 3) Clusterware installation You executed the following command in one of the nodes: cluvfy stage -pre dbinst -n all
What is the reason for executing this command?

A) to check for the existence of Oracle database software installation files in the /stage directory on all the nodes
B) to check whether the dbinst directory is available on all the nodes
C) to check for node connectivity and Clusterware integrity
D) to check if the ORACLEJHOME environmental variable is set to a correct value or not before the database installation

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

5. Richard is a senior DBA and has prepared a plan for RAC implementation in his company. Given below are some of the tasks that he would perform as part of the plan: 1) Creating the Raw Devices Mapping file 2) Creating database services 3) Binding the partitions to raw devices 4) Creating the Voting Disk file 5) Creating an initialization parameter file 6) Creating the Oracle Cluster Registry (OCR) file 7) Creating the tnsnames.ora file 8) Creating the database control file
During the creation of the RAC database, Richard can use the Database Configuration Assistant (DBCA) to perform some of these steps but not all of them. Which steps should be completed before Richard starts creating the database by using DBCA?

A) 1, 2,4,5,6,7
B) 1, 3,4,6
C) 2, 5,7,8
D) 2, 5,6,7,8
E) 3, 4,6,7,8

Solutions: