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Last Updated: Sep 23, 2026
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The Oracle Database 10g R2: Administering RAC exam has a reputation for rewarding candidates who prepare with the right material. With 150 carefully compiled practice questions, TestSimulate helps you turn the 1Z0-048 syllabus into something you can genuinely master.
Oracle 1Z0-048 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Oracle Database 10g R2: Administering RAC |
| Exam Number: | 1Z0-048 |
| Exam Duration: | 120 minutes |
| Available Languages: | English |
| Related Certifications: | Oracle Database Administrator Certified Professional |
| Real Exam Qty: | 75 |
| Passing Score: | 64% |
| Exam Price: | $245 USD |
| Exam Format: | Single Answer, Multiple Choice, Multiple Answer |
| Certificate Validity Period: | Lifetime |
| Recommended Training: | Oracle Database 10g R2: Implement RAC |
| Exam Registration: | Oracle Certification Portal Pearson VUE Registration |
| Sample Questions: | Oracle 1Z0-048 Sample Questions |
| Exam Way: | Proctored at Pearson VUE test centers |
| Pre Condition: | Oracle Database 10g Administrator Certified Professional or equivalent experience |
| Official Syllabus URL: | https://education.oracle.com/ |
Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: RAC Database and Instance Administration | 20% | - Managing services and workloads - Using SRVCTL and Enterprise Manager - Starting and stopping RAC components |
| 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% | - Monitoring RAC environment - Resolving common performance issues |
| Topic 4: Automatic Storage Management (ASM) for RAC | 15% | - Installing and configuring ASM - Managing ASM instances and disk groups |
| Topic 5: Oracle RAC Installation and Database Creation | 20% | - Installing Oracle RAC software - Preparing for RAC installation - Creating RAC databases with DBCA |
| Topic 6: Oracle Clusterware Installation and Configuration | 20% | - Pre-installation tasks and requirements - Installing and configuring Clusterware - Managing Clusterware components |
1Z0-048 Exam FAQ: What to Know Before You Book
The 1Z0-048 exam, officially titled Oracle Database 10g R2: Administering RAC, is the qualifying exam for the Oracle Certified Expert, Oracle Database 10g R2: Real Application Clusters Administrator certification, which sits at the Expert level. Earning it shows employers that you have the skills the credential stands for, and it is a solid step forward on a Oracle career path. It also connects to Oracle Database Administrator Certified Professional, so the effort you put in now keeps paying off as you advance.
The 1Z0-048 exam gives you 75 questions to complete within 120 minutes. Do the math before exam day: divide the total time by the question count to set a steady per-question pace, and flag any item that stalls you so you can return to it after securing the easier points. The most reliable way to build that rhythm is a full timed practice test under the same limit, which is exactly what TestSimulate's test engines are designed for.
The passing score for Oracle Database 10g R2: Administering RAC is 64%, and the official registration fee is $245 USD. Keep in mind that a retake means paying that fee again in full, which makes an honest self-check worthwhile: before you book, sit a timed practice test and make sure you are consistently scoring above the passing line with some margin to spare.
According to the official requirements: Oracle Database 10g Administrator Certified Professional or equivalent experience. Eligibility rules do change from time to time, so confirm the current details on the official exam page before you register.
Registration for the 1Z0-048 exam is handled through the official channels below:
The exam is delivered in the following format: Proctored at Pearson VUE test centers. Pick a date that leaves room for at least one full timed practice test beforehand.
Oracle recommends the following official training options for candidates preparing for Oracle Database 10g R2: Administering RAC:
Courses build the foundation, but they work best alongside question practice. That is where TestSimulate comes in: the 150 practice questions in our 1Z0-048 package let you rehearse the exam format at your own pace and see exactly where you stand.
Yes — TestSimulate offers a free PDF demo of the Oracle Database 10g R2: Administering RAC material, so you can review the question style and answer quality before you spend anything. After purchase, you also receive 365 days of free updates, and if your product expires you can extend the update service at a 50% discount from your member zone.
If you take the corresponding exam within 60 days of your purchase and do not pass, you are covered by the 100% Money Back Guarantee under clear conditions. To claim a full refund, submit a scan of your exam enrollment slip and your official Score Report PDF within two days of the exam; requests are processed within seven days. Note that sitting the exam within three days of purchase is not eligible, purchases that were never followed by an exam sitting do not qualify, free materials and expired orders are excluded, and the candidate name must match the payer name. Prefer an exchange instead? You can swap your product for two free exam packages of equal value and keep your update service. Delivery is immediate: your 1Z0-048 material is ready for instant download and is also emailed to you within one minute of payment — contact customer service if nothing arrives within two hours. There is no limit on the number of computers you can install it on.
The current Oracle Database 10g R2: Administering RAC syllabus is organized into 6 exam domains. The first three are:
- Monitoring and Performance Tuning (10%)
- Automatic Storage Management (ASM) for RAC (15%)
- RAC Database and Instance Administration (20%)
For the full domain and subtopic breakdown, see the Exam Topics section above — that is the outline your TestSimulate practice questions are mapped to.
Oracle Database 10g R2: Administering RAC Sample Questions:
You have a three-tier architecture for your application, which uses an Oracle RAC database and a middle tier that uses Oracle Application Server with Java programming, using JDBC as the standard. There are three RAC services defined, and four instances in the database are using ASM as the cluster file system. Connection pools are also used. Which three features of Fast Application Notification would be beneficial in your environment, and which choices for your application would you recommend? (Choose three.)
- A. ODP.Net connection pool
- B. Load Balancing Advisory FAN events to control ASM I/O workload
- C. the continuous availability of services due to FAN events
- D. the App Server Up and Down FAN event notifications
- E. JDBC Implicit Connection Cache
- F. Load Balancing Advisory FAN events to control workload per instance for each service
Correct Answer: C,E,F 🗳️
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_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.
- B. 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.
- C. DG_BROKER_CONFIG_FILE2 set to the same shared location for the second instance of both the primary and the standby databases.
- D. 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.
- E. 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.
- F. DG_BROKER_CONFIG_FILE1 set to the same shared location shared between the first instance of both the primary and the standby databases.
Correct Answer: B,E 🗳️
You are implementing a three-node RAC setup in your company. You have already performed these tasks:
1) Hardware and OS configuration 2) Cluster file system installation 3) Clusterware installation You executed the following command in one of the nodes: cluvfy stage -pre dbinst -n all
What is the reason for executing this command?
- A. to check for the existence of Oracle database software installation files in the /stage directory on all the nodes
- B. to check whether the dbinst directory is available on all the nodes
- C. to check for node connectivity and Clusterware integrity
- D. to check if the ORACLEJHOME environmental variable is set to a correct value or not before the database installation
Correct Answer: C 🗳️
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 alone would not help protect from human errors.
- B. RAC would increase availability in the event of node and instance failures.
- C. RAC would increase availability in the event of data failures.
- D. RAC would increase availability in the event of a network failure.
- E. RAC used in conjunction with parallel execution may provide for speedup of OLTP workload processes.
- F. RAC used in conjunction with parallel execution may provide speedup of DSS queries.
- G. RAC would increase scalability for all application workloads in all cases.
- H. RAC alone would increase availability when doing release upgrades.
Correct Answer: A,B,F 🗳️
Richard is a senior DBA and has prepared a plan for RAC implementation in his company. Given below are some of the tasks that he would perform as part of the plan: 1) Creating the Raw Devices Mapping file 2) Creating database services 3) Binding the partitions to raw devices 4) Creating the Voting Disk file 5) Creating an initialization parameter file 6) Creating the Oracle Cluster Registry (OCR) file 7) Creating the tnsnames.ora file 8) Creating the database control file
During the creation of the RAC database, Richard can use the Database Configuration Assistant (DBCA) to perform some of these steps but not all of them. Which steps should be completed before Richard starts creating the database by using DBCA?
- A. 1, 2,4,5,6,7
- B. 1, 3,4,6
- C. 2, 5,7,8
- D. 2, 5,6,7,8
- E. 3, 4,6,7,8
Correct Answer: B 🗳️
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