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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

1. You define the ERP service using this statement:
srvctl add service -d RACDB -s ERP -r RAC01 -a RAC02 -P PRECONNECT srvctl start service -d
RACDB -s ERP
You then use this connect string to connect to your RAC instances:
ERP =
(DESCRIPTION =(FAILOVER=ON)(LOAD_BALANCE=ON)
(ADDRESS=(PROTOCOL=TCP)(HOST=N1 VIP)(PORT=1521))
(ADDRESS=(PROTOCOL=TCP)(HOST=N2VIP)(PORT=1521))
(CONNECT_DATA = (SERVICE_NAME = ERP)
(FAILOVER_MODE =
(BACKUP=ERP_PRECONNECT)(TYPE=SESSION)(METHOD=PRECONNECT))))
You successfully establish a connection to your RAC database using the above connect string.
How many connections are established, and on which instances?

A) only one on RAC01
B) one on RAC01 and one on RAC02
C) two on RAC01
D) two on RAC02

2. 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 for node connectivity and Clusterware integrity
C) to check if the ORACLEJHOME environmental variable is set to a correct value or not before the database installation
D) to check whether the dbinst directory is available on all the nodes

3. Your four-node RAC cluster is no longer coping with workloads for one of its databases at peak periods and you decide to add another node to the cluster. The current configuration has two RAC databases, each with four instances with only the second database using ASM as a clustered database file system. ASM is installed in a separate home. Which five steps must you take to add all the software components and processes to the new node before you run DBCAto add database and ASM instances on the new cluster nodes. Do not be concerned with the correct sequence for the steps. (Choose five.)

A) Run addnode.sh in the Clusterware home/oui/bin directory from one of the existing nodes to define the new node to all existing nodes.
B) Run netca from the new node to add a listener to the new node.
C) Run addNode.sh in the ASM home/oui/bin directory from one of the existing nodes.
D) Run cluvfy stage -pre crsinst <list of all nodes> from one of the existing nodes to verify the cluster configuration.
E) Run addNode.sh in the RDBMS home/oui/bin directory from one of the existing nodes.
F) Run racgons add_config from one of the existing nodes to add the ONS metadata to the OCR.
G) Run addnode.sh in the Clusterware home/oui/bin directory from each of the existing nodes once to define the new node to each existing node.

4. When do you get the first notification after you execute the following command on instance
RDBA1?
execDBMS_SERVER_ALERT.SET_THRESHOLD(-
METRICSJD => dbms_server_alert.elapsed_time_per_call,
WARNINGJDPERATOR => dbms_server_alert.operator_ge,
WARNING_VALUE => 500000',
CRITICAL_OPERATOR => dbms_server_alert.operator_ge,
CRITICAL_VALUE => 750000',
OBSERVATION_PERIOD => 15,
CONSECUTIVEJDCCURRENCES => 3,
INSTANCE_NAME => 'RDBA1',
OBJECT_TYPE => dbms_server_alert.object_type_service,
OBJECT_NAME =>'ERP");

A) when the average elapsed time per call for the ERP service over a 15-minute period exceeds
0.5 seconds three consecutive times
B) when the average elapsed time per call for the ERP service over a 45-minute period exceeds
0.75 seconds
C) when the average elapsed time per call for the ERP service over a 45-minute period exceeds
0.5 seconds
D) when the average elapsed time per call for the ERP service over a 15-minute period exceeds
0.75 seconds three consecutive times

5. You and your colleague are working with Oracle Support on a database instance stability issue. The Oracle Support engineer wants you to issue a crsctl debug log crs ?crsctl debug log crs command to assist you in your troubleshooting assignment. Why does the Oracle Support engineer want you to do this?

A) to enable extra debugging on the CRS daemon the next time the CRS daemon is started
B) to list which debugging options are enabled on the CRS daemon
C) to list what debugging options are available on the CRS daemon
D) to enable extra debugging on the currently running CRS daemon
E) to enable extra debugging on the currently running and CRS daemons as well as those that will run in the future

Solutions: