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Oracle Other Oracle Certification 1Z0-048

1Z0-048

Exam Code: 1Z0-048

Exam Name: Oracle Database 10g R2: Administering RAC

Updated: Oct 19, 2026

Q & A: 150 Questions and Answers

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Oracle 1Z0-048 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Oracle Clusterware Installation and Configuration20%- Managing Clusterware components
- Pre-installation tasks and requirements
- Installing and configuring Clusterware
Topic 2: Oracle RAC Installation and Database Creation20%- Installing Oracle RAC software
- Preparing for RAC installation
- Creating RAC databases with DBCA
Topic 3: Monitoring and Performance Tuning10%- Resolving common performance issues
- Monitoring RAC environment
Topic 4: Automatic Storage Management (ASM) for RAC15%- Installing and configuring ASM
- Managing ASM instances and disk groups
Topic 5: RAC Database and Instance Administration20%- Managing services and workloads
- Starting and stopping RAC components
- Using SRVCTL and Enterprise Manager
Topic 6: Backup and Recovery in RAC Environment15%- Performing backup and recovery operations
- Configuring RMAN for RAC

Oracle Database 10g R2: Administering RAC Sample Questions:

Question #1
Which two statements regarding Oracle Clusterware are correct? (Choose two.)

A. The installation of Oracle Clusterware is not necessary if you have already installed vendor-specific clusterware.
B. The Oracle9i srvConfig.loc file still exists for backward compatibility in Oracle Database 10g.
C. The Oracle Database 10g CRS stack is compatible with Oracle 9i Group Services (GSD) processes.
D. The Oracle Database 10g version of the srvConfig.loc file is the ocr.loc file.


Question #2
For which two server metrics can you define thresholds for your services? (Choose two.)

A. CPU_TIME_PER_CALL
B. SQL EXECUTE ELAPSED TIME
C. APPLICATION_WAIT_TIME
D. LOGICAL_READ_PER_CALL
E. PHYSICAL_READ_PER_CALL
F. ELAPSED_TIME_PER_CALL


Question #3
View the Exhibit, which displays the cluster database performance page after the same workload has been executed three times on your cluster without varying any non-Oracle workloads on the cluster. What are the two ways by which you can tell that the corresponding application was better tuned during the second and third execution? (Choose two.)

A. The run queue length is going down each time.
B. There is less paging each time
C. The database throughout graphic is below the red dashed line during the last execution.
D. It takes less time to execute the workload each time.
E. The number of transactions per second is getting higher each time.


Question #4
In which directory should you put your callout scripts on your RAC nodes?

A. $ORA_CRS_HOME/opmn/conf/
B. $ORACLE_HOME/opmn/conf/
C. $ORA_CRS_HOME/racg/usrco/
D. JORACLE_HOME/racg/usrco/


Question #5
Which parameter file should you use to configure the Oracle notification server on your RAC nodes?

A. $ORA_CRS_HOME/opmn/conf/ons. config
B. $ORA_CRS_HOME/racg/usrco/ons. config
C. $ORACLE_HOME/racg/usrco/ons.config
D. $ORACLE_HOME/opmn/conf/ons. config


Solutions:

Question #1
Correct Answer: B,D
Question #2
Correct Answer: A,F
Question #3
Correct Answer: D,E
Question #4
Correct Answer: C
Question #5
Correct Answer: A

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