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Oracle Database 10g R2: Administering RAC Sample Questions:

1. In which directory should you put your callout scripts on your RAC nodes?

A) JORACLE_HOME/racg/usrco/
B) $ORACLE_HOME/opmn/conf/
C) $ORA_CRS_HOME/racg/usrco/
D) $ORA_CRS_HOME/opmn/conf/

2. Which two statements about parallel recovery in a RAC environment are true? (Choose two.)

A) The RECOVERY_PARALLELISM initialization parameter specifies the number of redo application server processes participating in instance or media recovery.
B) Parallel recovery is most effective at reducing recovery time while concurrently recovering several data files on several disks.
C) The RECOVER Y_PARALLELISM initialization parameter causes serial recovery if the value is greater than two.
D) The use of the RECOVER Y_PARALLELISM initialization parameter is the only way to initiate parallel recovery.

3. You need to add a new service to your RAC database, called DBA, to account for all the work done by database administrator sessions performing routine maintenance, to make this visible in the v$service_stats view. The maintenance would be done at quieter times but restricted session is not an option due to round-the-clock access requirements. The database administration team may connect locally or remotely to the RAC database. You decide to use DBCAto create the new service. What must be true to allow client-server connection to the DBA service? (Choose two.)

A) The TNSNAMES.ORAfile or a name server must contain the net service entries for the DBA service.
B) The services must be started using the SRVCTL START SERVICE command.
C) The service must be started using the DBMS_SERVICE.START_SERVICE procedure.
D) The ALTER SYSTEM REGISTER command must be used to induce PMON to register the service with the listeners.
E) The service must have at least one preferred or available instance that is running and accepting logins.
F) All the listeners must be reloaded using LSNRCTL RELOAD to recognize the dynamically created service.

4. You are creating a database in your RAC implementation. You are using the DBCA to create the database, and you selected the Raw Devices Mapping file on one of the screens of the DBCA. What is the reason for selecting this file?

A) You want to configure an ASM diskgroup containing raw devices.
B) You want the DBCA to bind the partitions to raw devices.
C) You want to provide the DBCA with a list of all the storage devices that are currently bound to a raw interface.
D) You want to set the appropriate raw partition for each database file.

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

Solutions:

Question # 1 Answer: C

Question # 2 Answer: A,B

Question # 3 Answer: A,E

Question # 4 Answer: D

Question # 5 Answer: B,C,D