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Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Automatic Storage Management (ASM) for RAC | 15% | - Managing ASM instances and disk groups - Installing and configuring ASM |
| Topic 2: Backup and Recovery in RAC Environment | 15% | - Configuring RMAN for RAC - Performing backup and recovery operations |
| Topic 3: Monitoring and Performance Tuning | 10% | - Resolving common performance issues - Monitoring RAC environment |
| Topic 4: Oracle Clusterware Installation and Configuration | 20% | - Managing Clusterware components - Pre-installation tasks and requirements - Installing and configuring Clusterware |
| Topic 5: Oracle RAC Installation and Database Creation | 20% | - Installing Oracle RAC software - Preparing for RAC installation - Creating RAC databases with DBCA |
| Topic 6: RAC Database and Instance Administration | 20% | - Using SRVCTL and Enterprise Manager - Starting and stopping RAC components - Managing services and workloads |
Oracle Database 10g R2: Administering RAC Sample Questions:
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. The ADDM report output reveals a "hot block" condition.
- 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.
Correct Answer: A,C,D 🗳️
You are working with Oracle Support to investigate to what extent a disk subsystem corruption has affected your Oracle cluster configuration. The support engineer wants you to run the OCRCHECK command and read out the output. What is the effect of running the OCRCHECK command?
- A. t checks whether all your cluster resources, such as databases, instances, listeners, and node applications, are registered within the OCR.
- B. t checks whether the OCR daemons are making regular backups of the OCR.
- C. t performs an OCR integrity check.
- D. t checks whether there is enough disk space for the OCR.
- E. t checks whether the Oracle Cluster Registry daemons are running normally.
Correct Answer: C 🗳️
You defined the HR service using the following command:
srvctl add service -d RACDB -s HR -r RAC02.RAC03 -a RAC01
After a while, you realize that there is a workload peak on the HR service, and you decide to temporarily start HR on the RAC04 instance.
Which command or series of commands would you use to start HR on RAC04?
- A. srvctl remove service -d RACDB -s HR Srvctl add service -d RACDB -s Hr-r RAC02.RAC03.RAC04 -a RAC01
- B. srvctl modify service -d RACDB -s HR -i RAC02.RAC03.RAC04 -a RAC01 srvctl stop service -d RACDB -s HR srvctl start service -d RACDB -s HR
- C. srvctl modify service -d RACDB -s HR -i RAC02.RAC03.RAC04 -a RAC01
- D. srvctl remove service -d RACDB -s HR Srvctl add service -d RACDB -s Hr-r RAC02.RAC03.RAC04 -a RAC01 srvctl start service -d RACDB -s HR
- E. srvctl start service -d RACDB -s HR -i RAC04
Correct Answer: B 🗳️
After a disk failure caused by a power outage, your CRS is unable to start up completely because all your OCR files are lost. Which commands would you use and in which order to redress this
situation?
1 OCRCONFIG -REPAIR (on the local cluster node only)
2 OCRCONFIG -REPAIR (on all cluster nodes)
3 OCRCONFIG -RESTORE <path name>
4 OCRCONFIG -IMPORT <path name>
5 CRSCTL STOP CRS (on the local cluster node only)
6 CRSCTL STOP CRS (on all cluster nodes)
7 OCRCONFIG -SHOWBACKUP
8 CRSCTL START CRS (on the local cluster node only)
9 CRSCTL START CRS (on all cluster nodes)
- A. 7,6,3,9.
- B. 7,6,4,9.
- C. 6,4,9.
- D. 5,4,8.
- E. 7,6,3,2,9.
- F. 6,3,9.
- G. 5,3,8.
Correct Answer: A 🗳️
Which two statements regarding Oracle Clusterware are correct? (Choose two.)
- A. The Oracle Database 10g version of the srvConfig.loc file is the ocr.loc file.
- B. The installation of Oracle Clusterware is not necessary if you have already installed vendor-specific clusterware.
- C. The Oracle Database 10g CRS stack is compatible with Oracle 9i Group Services (GSD) processes.
- D. The Oracle9i srvConfig.loc file still exists for backward compatibility in Oracle Database 10g.
Correct Answer: A,D 🗳️
