Oracle 1Z0-048 : Oracle Database 10g R2: Administering RAC
- Exam Code: 1Z0-048
- Exam Name: Oracle Database 10g R2: Administering RAC
- Updated: Oct 02, 2026
- Q & A: 150 Questions and Answers
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Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Automatic Storage Management (ASM) for RAC | 15% | - Managing ASM instances and disk groups - Installing and configuring ASM |
| Oracle RAC Installation and Database Creation | 20% | - Creating RAC databases with DBCA - Installing Oracle RAC software - Preparing for RAC installation |
| Monitoring and Performance Tuning | 10% | - Resolving common performance issues - Monitoring RAC environment |
| RAC Database and Instance Administration | 20% | - Managing services and workloads - Starting and stopping RAC components - Using SRVCTL and Enterprise Manager |
| Backup and Recovery in RAC Environment | 15% | - Configuring RMAN for RAC - Performing backup and recovery operations |
| Oracle Clusterware Installation and Configuration | 20% | - Managing Clusterware components - Installing and configuring Clusterware - Pre-installation tasks and requirements |
Oracle Database 10g R2: Administering RAC Sample Questions:
What does server-side Connect-Time Load Balancing do to complement the client-side Connect-Time Load Balancing function of balancing the connection requests to all the listeners in the address list on the client side?
- A. it balances the load for each service across all available instances for that service, according to service-specific load-balancing requirements,
- B. it balances the load for each service across all preferred instances for all services, according to the service-specific load-balancing requirements,
- C. it balances the load for each service across all instances for that service, according to the service-specific load-balancing requirements,
- D. it balances the load for each service across all preferred instances for that service, according to the global load-balancing requirements.
- E. it balances the load for each service across all preferred instances for that service, according to the service-specific load-balancing requirements,
Correct Answer: E 🗳️
Which two statements regarding the installation of the Oracle 10g Database software are true? (Choose two.)
- A. The OUI does not support a RAC installation if the Standard Edition is chosen from the Installation Type page.
- B. The directory path for the Oracle 10g Database software must not be the same as the Oracle 10g Clusterware home directory.
- C. If the OUI does not display all of the available nodes in your cluster, check the viability of your cluster and its associated nodes by executing the chkcluster command from $ORA_CRS_HOME/bin directory.
- D. The Oracle Universal Installer (OUI) can detect the cluster hardware and allow the user to install the software on the local node or choose all nodes to install the software.
Correct Answer: B,D 🗳️
You are considering issues involving backup and recovery of the voting disk. Select four correct statements. (Choose four.)
- A. To back up the voting disk, use the command ocrconfig -export.
- B. You can determine the voting disks currently used by CSS with the command crsctl query ess votedisk.
- C. Use symbolic links to simplify recovery of the voting disk.
- D. Backup can be performed online.
- E. If you lose your voting disk and do not have a backup, you must reinstall Oracle Clusterware. ]
Correct Answer: C,D,E 🗳️
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 currently running CRS daemon
- B. to enable extra debugging on the currently running and CRS daemons as well as those that will run in the future
- C. to enable extra debugging on the CRS daemon the next time the CRS daemon is started
- D. to list what debugging options are available on the CRS daemon
- E. to list which debugging options are enabled on the CRS daemon
Correct Answer: B 🗳️
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 Findings Path section indicates that the Cluster wait class is consuming a significant proportion of the database time.
- C. A LOCK TABLE statement is causing excessive inter-instance messaging.
- D. The SQL statement with the ID dqsu2hwys8rcf was executed 40000 times
Correct Answer: B,C,D 🗳️
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