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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

1. Several steps must be followed to successfully add a new node to your cluster database. Assuming that a UNIX platform is used, which of the three steps below are correct? (Choose three.)

A) Add instances using OUI.
B) Configure the OS and hardware for the new node.
C) Add the RAC software to the new node using addnode.sh from ORA_CRS_HOM
D) Reconfigure listeners for the new node with netca.
E) Add the node to the cluster using the addnode.sh script run from ORA_CRS_HOME.

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

3. View the Exhibit, which displays a portion of an ADDM report from a RAC database. Which three statements are true? (Choose three.)

A) The SQL statement with the ID dqsu2hwys8rcf was executed 40000 times
B) The ADDM report output reveals a "hot block" condition.
C) A LOCK TABLE statement is causing excessive inter-instance messaging.
D) The Findings Path section indicates that the Cluster wait class is consuming a significant proportion of the database time.

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 scalability for all application workloads in all cases.
C) RAC alone would increase availability when doing release upgrades.
D) RAC would increase availability in the event of node and instance failures.
E) RAC used in conjunction with parallel execution may provide speedup of DSS queries.
F) RAC used in conjunction with parallel execution may provide for speedup of OLTP workload processes.
G) RAC would increase availability in the event of a network failure.
H) RAC would increase availability in the event of data failures.

5. You are running a two-instance database with six redo log groups defined and decide to add a third thread to support a third database instance on the third node of the cluster. Which three commands would you issue to achieve this using command line administration? (Choose three.)

A) ALTER SYSTEM ADD LOGFILE THREAD 3 GROUP 8;
B) ALTER DATABASE ENABLE THREAD 3;
C) ALTER SYSTEM ADD LOGFILE THREAD 3 GROUP 7;
D) ALTER DATABASE ADD LOGFILE THREAD 3 GROUP 8;
E) ALTER DATABASE ADD LOGFILE THREAD 3 GROUP 7;
F) ALTER SYSTEM ENABLE THREAD 3;

Solutions: