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Oracle 1Z0-048 Exam Syllabus Topics:

Oracle Database 10g R2: Administering RAC Sample Questions:

1. While creating a new service inside your ORCL database, you encounter a problem during the execution of the srvctl add service command. Because you are unable to explain the reason for this failure, you decide to log a service request in Oracle Metalink. You want to make this service request as complete as possible. You want to create a trace file from your problematic srvctl command execution so that Oracle Support has all possible information to quickly identify and resolve your problem. How do you create a Java-based tool trace file?

A) Set the DEBUG environment variable to TRUE before you execute the srvctl command.
B) Set the SRVM_TRACE environment variable to TRUE before you execute the srvctl command.
C) Request extra information by adding the -v (verbose) command-line flag at the srvctl command line.
D) Set the SRVM_DEBUG environment variable to TRUE before you execute the srvctl command.
E) Request extra information by adding the -d (debug) command-line flag at the srvctl command line.

2. What should you do when creating a disk group that would store your RAC database?

A) Make sure that ASM targets are accessible from Database Control.
B) Make sure that the disk group is mounted by all ASM instances.
C) Make sure that all database instances are running in restricted mode.
D) Make sure that all database instances are functional.

3. Which three statements are true regarding RAC instance startup and shutdown using SQL'Plus? (Choose three.)

A) To start or shut down your local instance, initiate a SQL*Plus session connected as SYSDBA or SYSOPER, and then issue the required command.
B) You can start multiple instances from a single SQL*Plus session on one node using Oracle Net Services connection strings.
C) Using SQL*Plus to start and stop the RAC database instances is the preferred method because SQL*Plus is a Clusterware client.
D) It is not possible to start up or shut down more than one instance at a time in SOL*Plus. so you cannot start or stop all the instances for a cluster database with a single SQL*Plus command.

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

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

5. 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) Change the VIP addresses on the cluster using SRVCTL while the cluster is fully functional.
B) Change the VIP addresses in DNS and the cluster would pick up the new addresses automatically.
C) Stop all VIP-dependent components on all cluster nodes, make the necessary changes in DNS, and then restart all VIP-dependent components.
D) 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.
E) Reinstall the Oracle Clusterware layer of your cluster.

Solutions: