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Oracle 1Z0-048 : Oracle Database 10g R2: Administering RAC
- Exam Code: 1Z0-048
- Exam Name: Oracle Database 10g R2: Administering RAC
- Updated: Oct 28, 2026 Q&As: 150 Questions and Answers
About Oracle 1Z0-048 Exam
Certificates separate you from the crowd. Earn the Oracle Database 10g R2: Administering RAC credential with 150 practice questions from DumpsTests, and let your professional background do the talking.
Oracle 1Z0-048 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Oracle Database 10g R2: Administering RAC |
| Exam Number: | 1Z0-048 |
| Exam Duration: | 120 minutes |
| Exam Format: | Multiple Response, Multiple Choice |
| Exam Price: | $245 USD |
| Related Certifications: | Oracle Database 10g Administrator Certified Professional (OCP) Oracle Database 10g Administrator Certified Associate (OCA) |
| Available Languages: | English |
| Recommended Training: | Oracle University Training |
| Exam Registration: | Oracle Certification Portal |
| Sample Questions: |  |
| Exam Way: | Proctored exam (online or testing center depending on Oracle partner delivery at the time) |
| Pre Condition: | Recommended: Oracle Database 10g Administrator Certified Associate (OCA) or equivalent DBA experience |
| Official Syllabus URL: | https://education.oracle.com |
Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Oracle RAC Architecture | - Shared storage concepts - Cluster fundamentals and components - Cache Fusion and interconnect communication |
| Topic 2: High Availability Concepts | - Failover mechanisms - RAC recovery scenarios |
| Topic 3: Performance and Tuning | - Monitoring RAC performance - Troubleshooting performance issues - Load balancing and failover |
| Topic 4: Installation and Configuration | - Preparing RAC environment - Installing Oracle Clusterware - Installing RAC database software |
| Topic 5: Cluster and Database Administration | - Services configuration and management - Backup and recovery in RAC - Managing RAC instances |
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Yes:
Pair any official course with effective review: the 150 practice questions for the Oracle Database 10g R2: Administering RAC turn training knowledge into exam-ready answers.
The Oracle Database 10g R2: Administering RAC blueprint covers 5 domains — including Oracle RAC Architecture, Installation and Configuration, High Availability Concepts. Let the weightings steer your schedule: the heavier the domain, the heavier your practice time. Every subtopic is listed in the outline above.
Recommended: Oracle Database 10g Administrator Certified Associate (OCA) or equivalent DBA experience Since vendors update eligibility rules periodically, verify the current requirements on the official page (official 1Z0-048 exam page) before registering.
Registration runs through the vendor's official channels:
The Oracle Database 10g R2: Administering RAC is delivered Proctored exam (online or testing center depending on Oracle partner delivery at the time) — choose your preferred option when booking.
The Oracle Database 10g R2: Administering RAC is Oracle's official exam for the Oracle Database 10g Administrator Certified Professional (OCP) credential (Professional level). Passing it certifies a professional background that helps you stand out at work instead of running with the crowd. It also relates to Oracle Database 10g Administrator Certified Associate (OCA), Oracle Database 10g Administrator Certified Professional (OCP).
Yes — the free Oracle Database 10g R2: Administering RAC demo shows real question quality before you pay, the surest way to identify helpful material in a crowded market. Buying includes 365 days of free updates, renewable later at 50% off.
Oracle Database 10g R2: Administering RAC Sample Questions:
Question #1
You execute the following command from the first node of your cluster: crsctl add ess votedisk /dev/raw/raw9
However, you get an error message indicating that Oracle Clusterware stack is not started. Which command would you execute?
- A. crsctl add ess votedisk /dev/raw/raw9 -force
- B. crsctl start crs Crsctl add ess votedisk /dev/raw/raw9 -force
- C. crsctl enable crs Crsctl add ess votedisk /dev/raw/raw9 -force
- D. crsctl enable crs Crsctl add ess votedisk /dev/raw/raw9
- E. crsctl start crs Crsctl add ess votedisk /dev/raw/raw9
Correct Answer: A 🗳️
Question #2
Your storage administrator informs you about some disk corruption issues in the disk subsystem where your Oracle Cluster Registry (OCR) backups are located. Your storage administrator has resolved these corruption issues by applying a patch to the storage subsystem, but to be sure that the OCR backups are not affected by this problem the administrator wants you to check the integrity of the OCR backups. How would you do this?
- A. You create another physical backup of the OCR backups by using the OCRCONFIG command, and if this succeeds without errors you know that the OCR backups are not corrupted.
- B. You dump the OCR backup contents into a text file by using the OCRDUMP command, and if that succeeds without errors you know that your OCR backups are not corrupted.
- C. There is no easy way to check your OCR backups for corruptions.
- D. You can check whether the OCR backups are not corrupted by using the OCRCHECK command.
- E. You create a logical export from the OCR backups by using the OCRCONFIG command and analyze the export file for errors.
Correct Answer: B 🗳️
Question #3
Your system administrator informs you that there are a number of unexpected system reboots occurring on one of your Oracle database clusters. The system administrator has no clue whether this is a hardware or system software issue or whether the Oracle Clusterware is causing these reboots. To determine the source of these unexpected reboots, the system administrator asks you how you can enable debugging on the Oracle Clusterware software components. Which two statements are true regarding Oracle Clusterware debugging? (Choose two.)
- A. You have to restart Oracle Clusterware after enabling debugging to activate it.
- B. You enable Oracle Clusterware debugging using the CRSCTL command as the oracle user.
- C. You can enable Oracle Clusterware debugging dynamically.
- D. You enable Oracle Clusterware debugging using the CRSCTL command as the root user.
- E. You enable Oracle Clusterware debugging using the SRVCTL command.
Correct Answer: C,D 🗳️
Question #4
When an ASM instance initializes, ASM discovers and examines the contents of all the disks that are in the paths designated in the ASM_DISKSTRING initialization parameter. Under which four other circumstances does disk discovery take place? (Choose four.)
- A. when you query V$ASM_DISK
- B. when you run ALTER DISKGROUP...RESIZE DISK
- C. when you query VJASMjDPERATION
- D. when you run ALTER DISKGROUP...ADD DISK
- E. when you query V$ASM_DISKGROUP
Correct Answer: A,B,D,E 🗳️
Question #5
Which three statements are correct regarding ASM instances in a RAC environment? (Choose three.)
- A. ASM instances recognize their disks by looking at their headers.
- B. ASM instances must all have the same value for ASM DISKGROUPS.
- C. ASM instances can mount different sets of disk groups.
- D. ASM instances can use different values for ASM_POWER_LIMIT.
- E. ASM instances must all have the same value for ASM_DISKSTRING.
Correct Answer: A,C,D 🗳️
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