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Instant Download Oracle : 1Z0-048 Questions & Answers as PDF & Test Engine
- Exam Code: 1Z0-048
- Exam Name: Oracle Database 10g R2: Administering RAC
- Updated: Aug 24, 2026
- No. of Questions: 150 Questions and Answers
- Download Limit: Unlimited
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Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Backup and Recovery in RAC Environment | 15% | - Performing backup and recovery operations - Configuring RMAN for RAC |
| Topic 2: Monitoring and Performance Tuning | 10% | - Monitoring RAC environment - Resolving common performance issues |
| Topic 3: Oracle Clusterware Installation and Configuration | 20% | - Pre-installation tasks and requirements - Managing Clusterware components - Installing and configuring Clusterware |
| Topic 4: Oracle RAC Installation and Database Creation | 20% | - Preparing for RAC installation - Installing Oracle RAC software - Creating RAC databases with DBCA |
| Topic 5: RAC Database and Instance Administration | 20% | - Managing services and workloads - Using SRVCTL and Enterprise Manager - Starting and stopping RAC components |
| Topic 6: Automatic Storage Management (ASM) for RAC | 15% | - Installing and configuring ASM - Managing ASM instances and disk groups |
Oracle Database 10g R2: Administering RAC Sample Questions:
Question 1
After migrating from a 10g R1 cluster to 10g R2, you decide to multiplex your voting disk. Which are the two ways in which you can accomplish this task? (Choose two.)
A. You should not use symbolic links.
B. You may use the command:
crsctl add ess votedisk <new voting disk path>
C. You must add additional voting disks offline.
D. You can add additional voting disks online.
E. You may use the VIPCA utility to add new voting disks.
Question 2
Your storage administrator informs you about some disk corruption issues in the disk subsystem where your Oracle Cluster Registry (OCR) is located. Your storage administrator has resolved these corruption issues by applying a patch to the storage subsystem, but to be sure that the OCR is not affected by this problem the administrator wants you to check the integrity of the OCR. How would you do this?
A. You create a logical export from the OCR by using the OCRCONFIG command and analyze the export file for errors.
B. You create a physical backup of the OCR by using the OCRCONFIG command, and if this succeeds without errors you know that the OCR is not corrupted.
C. There is no easy way to check your OCR for corruptions.
D. You can check whether the OCR is not corrupted by using the OCRCHECK command.
E. You dump the OCR contents into a text file by using the OCRDUMP command, and if that succeeds without errors you know that your OCR is not corrupted.
Question 3
For which two server metrics can you define thresholds for your services? (Choose two.)
A. APPLICATION_WAIT_TIME
B. ELAPSED_TIME_PER_CALL
C. SQL EXECUTE ELAPSED TIME
D. CPU_TIME_PER_CALL
E. LOGICAL_READ_PER_CALL
F. PHYSICAL_READ_PER_CALL
Question 4
The maximum number of redo threads for a database from 10g R2 is
A. determined by the maxlogfiles setting
B. determined by the number of nodes in the cluster
C. determined by the maxthreads setting
D. determined by the maxinstances setting
E. not limited because the control file can extend for more thread records if required to
Question 5
Several steps must be followed to successfully add a new node to your cluster database. Assuming that a UNIX platform is used, which of the three steps below are correct? (Choose three.)
A. Add instances using OUI.
B. Reconfigure listeners for the new node with netca.
C. Configure the OS and hardware for the new node.
D. Add the node to the cluster using the addnode.sh script run from ORA_CRS_HOME.
E. Add the RAC software to the new node using addnode.sh from ORA_CRS_HOM
Solutions:
| Question 1 Answer: B,D | Question 2 Answer: D | Question 3 Answer: B,D | Question 4 Answer: D | Question 5 Answer: B,C,D |
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