Oracle 1Z0-048 : Oracle Database 10g R2: Administering RAC

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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) two on RAC01
B) one on RAC01 and one on RAC02
C) only one 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 if the ORACLEJHOME environmental variable is set to a correct value or not before the database installation
C) to check for node connectivity and Clusterware integrity
D) to check whether the dbinst directory is available on all the nodes

3. You are asked by the DBA team leader to consolidate three different Oracle databases, which supported three separate workloads, into one large three-instance RAC database on a three-node cluster. You also need to create a separate service to represent each workload type and support client-side load balancing. The CRM service has two preferred instances, the HR service has two, and the ORDERS service
has only one. Any instance may be used as an vailable instance for any service that is not
specified as a preferred service for that same instance. You decide to create three separate
entries in TNSNAMES.ORA.
Choose three options describing the number of entries you would have in each address list.
(Choose three.)

A) three entries in the address list for the HR service for the listeners on all three nodes
B) three entries in the address list for the CRM service for the listeners on all three nodes
C) two entries for the address list for the CRM service pointing to the listeners on the nodes containing the preferred instances for CRM
D) three entries in the address list for the ORDERS service pointing to the listeners on all three nodes
E) one entry for the address list for the ORDERS service for the listeners on the nodes containing the preferred instance for ORDERS
F) two entries for the address list for the HR service for the listeners on the nodes containing the preferred instances for HR

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

5. View the Exhibit.
You are asked to help a colleague to logically remove node NLEDUC2 from a RAC cluster
installation.
On observing the colleague's terminal, you notice the output as seen in the exhibit. Based on this,
which five additional steps would you recommend? Do not be concerned with the correct
sequence for the steps.
(Choose five.)

A) Remove the node from the clusterware.
B) Check that the software has been removed from the database and ASM homes on NLEDUC2.
C) Check that the ONS configuration has been updated on the remaining node.
D) Check that the database and ASM instances are all terminated on NLEDUC2.
E) Check that the node has been removed from the database and ASM inventories.
F) Stop and restart the clusterware on NLEDUC1.
G) Stop and restart the nodeapps on NLEDUC1.
H) Remove the listener from NLEDUC2.

Solutions: