A Oracle certificate can change the direction of a career, and the 1Z0-048 exam is the step that makes it real. VCE4Plus supports that step with 150 practice questions carrying verified answers, all-day customer service, and thoughtful software details like hideable answers and note-taking space.
Oracle 1Z0-048 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Oracle Database 10g R2: Administering RAC |
| Exam Number: | 1Z0-048 |
| Related Certifications: | Oracle Database 10g Administrator Certified Associate (OCA) Oracle Database 10g Administrator Certified Professional (OCP) |
| Exam Format: | Multiple Response, Multiple Choice |
| Available Languages: | English |
| Exam Price: | $245 USD |
| Exam Duration: | 120 minutes |
| Recommended Training: | Oracle University Training |
| Exam Registration: | Oracle Certification Portal |
| Sample Questions: | DOWNLOAD DEMO |
| 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: Performance and Tuning | - Troubleshooting performance issues - Load balancing and failover - Monitoring RAC performance |
| Topic 2: Oracle RAC Architecture | - Cache Fusion and interconnect communication - Cluster fundamentals and components - Shared storage concepts |
| Topic 3: Cluster and Database Administration | - Backup and recovery in RAC - Managing RAC instances - Services configuration and management |
| Topic 4: High Availability Concepts | - RAC recovery scenarios - Failover mechanisms |
| Topic 5: Installation and Configuration | - Preparing RAC environment - Installing RAC database software - Installing Oracle Clusterware |
1Z0-048 Exam Questions: Frequently Asked Questions
Oracle points candidates toward these official training resources for the Oracle Database 10g R2: Administering RAC exam:
Coursework builds knowledge, but practice builds confidence — the 150 practice questions from VCE4Plus are the natural next step once the training material is behind you.
The 1Z0-048 exam is an official Oracle certification exam built around the Oracle Database 10g R2: Administering RAC syllabus detailed above. It counts toward these credential paths: Oracle Database 10g Administrator Certified Associate (OCA), Oracle Database 10g Administrator Certified Professional (OCP). Passing it demonstrates verified, job-relevant skills — one reason Oracle credentials remain widely respected in 2026. VCE4Plus helps you prepare with 150 practice questions available in PDF, Desktop Test Engine, and Online Test Engine formats.
According to the official outline, the Oracle Database 10g R2: Administering RAC exam is structured around 5 content domains. The leading three are Installation and Configuration, Performance and Tuning, and High Availability Concepts. The complete list appears in the topics section above, and VCE4Plus's 150 practice questions span every domain in it.
Proctored exam (online or testing center depending on Oracle partner delivery at the time) Use these official channels to register for the Oracle Database 10g R2: Administering RAC exam:
Once your date is booked, work backward from it with the VCE4Plus practice questions — they arrive by email within 1 minute of purchase.
Exam fees and scoring scales are published by Oracle and can vary, so confirm both on the official site before you book.
Yes — under clear, written conditions. If you take the Oracle Database 10g R2: Administering RAC exam within 60 days of purchase and do not pass, VCE4Plus issues a full refund. The policy excludes exams taken within 3 days of purchase, exams never actually taken, free materials, and expired orders, and the candidate name must match the payer name. Send a scan of your enrollment slip and the official Score Report PDF within 2 days of the exam, and your claim is processed within 7 days. If you would rather keep preparing, you can instead exchange for two free exam products of equal value while your original product's update service continues. Delivery after purchase is by email within 1 minute; contact support if nothing arrives within 2 hours.
Oracle publishes the current exam length and question count on its official pages; review them before your test date.
Recommended: Oracle Database 10g Administrator Certified Associate (OCA) or equivalent DBA experience Eligibility rules can be updated, so double-check them on the official Oracle exam page before you register.
Three things candidates mention most: coverage, flexibility, and service. You receive 150 practice questions for the Oracle Database 10g R2: Administering RAC exam in three formats — a printable expert-prepared PDF, a Windows Desktop Test Engine with two practice modes and offline use, and an Online Test Engine for any browser on Windows, Mac, Android, or iOS with test history and performance review. Install on unlimited computers, try the free demo first, get free updates for 365 days, and renew afterward at 50% off. Small touches matter too: hide the answers while you practice, reveal them when you check your work, and keep notes right where you study.
Oracle Database 10g R2: Administering RAC Sample Questions:
Which three storage types are suitable as a flash recovery area for an Oracle 10g RAC database? (Choose three.)
- A. Cluster file system
- B. ASM disk group
- C. Local file system
- D. Raw volume
- E. Shared NFS directory
Correct Answer: A,B,E 🗳️
In which two orders could you run the following commands to migrate your database to ASM?
(Choose two.)
1 SHUTDOWN IMMEDIATE;
2 SWITCH DATABASE TO COPY;
3 STARTUP NOMOUNT;
4 ALTER DATABASE OPEN;
5 ALTER DATABASE TEMPFILE '/u01/ORCL/temp1.dbf DROP;
6 ALTER SYSTEM SET db_create_file_dest='+DATA' SCOPE=SPFILE;
7 BACKUP AS COPY DATABASE FORMAT '+DATA';
8 ALTER TABLESPACE temp ADD TEMPFILE;
9 RESTORE CONTROLFILE FROM '/u01/ORCL7control1.ctl';
10 ALTER SYSTEM SET control_files=" SCOPE=SPFILE;
11 RECOVER DATABASE;
12 ALTER DATABASE MOUNT;
- A. 6,10,1, 3,9,12,7,2,11,8,4,5
- B. 6,10,1, 9,3,12,7,2,11,4,5,8
- C. 1,2,10,3,5,4,11,6,7,8,9,12
- D. 10,6,1, 3,9,12,7,2,11,4,8,5
- E. 6,10,1, 3,9,12,7,2,11,4,8,5
Correct Answer: D,E 🗳️
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 start crs Crsctl add ess votedisk /dev/raw/raw9
- B. crsctl enable crs Crsctl add ess votedisk /dev/raw/raw9
- C. crsctl add ess votedisk /dev/raw/raw9 -force
- D. crsctl enable crs Crsctl add ess votedisk /dev/raw/raw9 -force
- E. crsctl start crs Crsctl add ess votedisk /dev/raw/raw9 -force
Correct Answer: C 🗳️
Read the following statements about a file system:
1) It is compatible with Oracle 9i and Oracle 10g.
2) It is one of the solutions for managing Oracle binaries in a RAC environment.
3) It relies on storage hardware or host-based RAID functionality to support high availability.
4) It is a shared storage file system designed in such a way that you can avoid setting up of raw
partitions to store certain files.
Which file system corresponds to these features?
- A. ASM
- B. OCFS2
- C. NFS
- D. ext2
- E. NTFS
Correct Answer: B 🗳️
What does server-side Connect-Time Load Balancing do to complement the client-side Connect-Time Load Balancing function of balancing the connection requests to all the listeners in the address list on the client side?
- A. it balances the load for each service across all available instances for that service, according to service-specific load-balancing requirements,
- B. it balances the load for each service across all instances for that service, according to the service-specific load-balancing requirements,
- C. it balances the load for each service across all preferred instances for that service, according to the service-specific load-balancing requirements,
- D. it balances the load for each service across all preferred instances for that service, according to the global load-balancing requirements.
- E. it balances the load for each service across all preferred instances for all services, according to the service-specific load-balancing requirements,
Correct Answer: C 🗳️
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