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Oracle Database 10g R2: Administering RAC Sample Questions:

1. You want check whether the group services node application is running on all the nodes in your cluster before you create a cluster database. Which utility can you use to make sure the node application is running on all nodes in the cluster?

A) addnode.sh
B) crsctl
C) crs_stat
D) Isnrctl
E) onsctl

2. Your company is about to switch from one Internet Service Provider (ISP) to another, and this change of ISP comes along with a whole new set of network addresses. Your job is to change the VIP addresses of your company's Oracle Cluster.
How would you apply this change?

A) Stop all VIP-dependent cluster components on one node, make the necessary changes in DNS, change the VIP using SRVCTL, restart all VIP-dependent components, and then perform these steps on al the remaining nodes one at a time.
B) Change the VIP addresses in DNS and the cluster would pick up the new addresses automatically.
C) Change the VIP addresses on the cluster using SRVCTL while the cluster is fully functional.
D) Reinstall the Oracle Clusterware layer of your cluster.
E) Stop all VIP-dependent components on all cluster nodes, make the necessary changes in DNS, and then restart all VIP-dependent components.

3. The maximum number of redo threads for a database from 10g R2 is

A) determined by the maxinstances setting
B) determined by the number of nodes in the cluster
C) determined by the maxlogfiles setting
D) not limited because the control file can extend for more thread records if required to
E) determined by the maxthreads setting

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

5. Which three statements regarding the management of Oracle Cluster Registry (OCR) on a UNIX platform are true? (Choose three.)

A) One CRS instance in the cluster automatically creates OCR backups every four hours, at the beginning of each day and of each week.
B) The OCR autobackups are automatically copied to every ORA_CRS_HOME on each node in the cluster.
C) The default target location of each automatically generated OCR backup file is the <CRS Home>/cdata/<cluster name> directory.
D) The location of the OCR autobackup can be changed to a shared file system with the ocrconfig -backuploc command.
E) You can customize the OCR backup frequencies and the number of retained copies.

Solutions: