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Oracle Database 10g R2: Administering RAC : 1Z0-048
- Exam Code: 1Z0-048
- Exam Name: Oracle Database 10g R2: Administering RAC
- Updated: Sep 13, 2026 Q&As: 150 Questions and Answers
- Q & A: 150 Questions and Answers
About Oracle Database 10g R2: Administering RAC : 1Z0-048 Exam
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Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Cluster and Database Administration | - Managing RAC instances - Services configuration and management - Backup and recovery in RAC |
| Installation and Configuration | - Installing Oracle Clusterware - Preparing RAC environment - Installing RAC database software |
| Oracle RAC Architecture | - Cluster fundamentals and components - Cache Fusion and interconnect communication - Shared storage concepts |
| High Availability Concepts | - RAC recovery scenarios - Failover mechanisms |
| Performance and Tuning | - Load balancing and failover - Monitoring RAC performance - Troubleshooting performance issues |
Oracle Database 10g R2: Administering RAC Sample Questions:
Question #1
View the Exhibit, which displays a portion of an ADDM report from a RAC database. Which three statements are true? (Choose three.)
- A. The SQL statement with the ID dqsu2hwys8rcf was executed 40000 times
- B. A LOCK TABLE statement is causing excessive inter-instance messaging.
- C. The Findings Path section indicates that the Cluster wait class is consuming a significant proportion of the database time.
- D. The ADDM report output reveals a "hot block" condition.
Answer: A,B,C
Question #2
Your company asked you to implement RAC to enhance the scalability and availability of the database that you manage. Your coworker suggested that you use ASM as the only storage option. However, you implemented RAC with Automatic Storage Management (ASM) as well as OCFS as storage options. What are the reasons for implementing both OCFS and ASM as storage options? (Choose all that apply.)
- A. You do not want to use raw devices to store voting and OCR files.
- B. You do not want to store any file other than voting and OCR files in ASM.
- C. You want to use the Oracle Managed Files (OMF) feature but that is not supported by ASM.
- D. You want to avoid keeping Oracle binaries on local storage.
- E. You require OCFS to store archive log files because ASM does not support these files.
Answer: A,D
Question #3
You decide to implement a Dataguard configuration for your RAC installation to support your disaster recovery architecture. There are two instances on the primary and two on the physical standby. Which are the two appropriate settings for the DG_BROKER_CONFIG_FILE1 and DG_BROKER_CONFIG_FILE2 initialization parameters? (Choose two.)
- A. DG_BROKER_CONFIG_FILE2 set to the same shared location for the second instance of both the primary and the standby databases.
- B. DG_BROKER_CONFIG_FILE1 set to a location shared between each standby database instance and DG_BROKER_CONFIG_FILE2 set to a different location shared between each standby database instance on the standby database cluster.
- C. DG_BROKER_CONFIG_FILE1 set to the same shared location shared between the first instance of both the primary and the standby databases.
- D. DG_BROKER_CONFIG_FILE1 set to a nonshared location for each secondary database instance and DG_BROKER_CONFIG_FILE2 set to a shared location for each secondary database instance on the secondary database cluster.
- E. DG_BROKER_CONFIG_FILE1 set to a location shared between each primary database instance and DG_BROKER_CONFIG_FILE2 set to a different location shared between each primary database instance on the primary database cluster.
- F. DG_BROKER_CONFIG_FILE1 set to a nonshared location for each primary database instance and DG_BROKER_CONFIG_FILE2 set to a shared location for each primary database instance on the primary database cluster.
Answer: B,E
Question #4
In which directory should you put your callout scripts on your RAC nodes?
- A. JORACLE_HOME/racg/usrco/
- B. $ORA_CRS_HOME/racg/usrco/
- C. $ORACLE_HOME/opmn/conf/
- D. $ORA_CRS_HOME/opmn/conf/
Answer: B
Question #5
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 used in conjunction with parallel execution may provide for speedup of OLTP workload processes.
- B. RAC alone would increase availability when doing release upgrades.
- C. RAC alone would not help protect from human errors.
- D. RAC would increase availability in the event of node and instance failures.
- E. RAC would increase scalability for all application workloads in all cases.
- F. RAC would increase availability in the event of a network failure.
- G. RAC would increase availability in the event of data failures.
- H. RAC used in conjunction with parallel execution may provide speedup of DSS queries.
Answer: C,D,H
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