Learn with Oracle : 1Z0-048 training material for 100% pass
Updated: Aug 30, 2026
No. of Questions: 150 Questions & Answers with Testing Engine
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Oracle 1Z0-048 Exam Overview:
| Certification Vendor: | Oracle |
|---|---|
| Exam Name: | Oracle Database 10g R2: Administering RAC |
| Exam Number: | 1Z0-048 |
| Exam Format: | Multiple Choice, Multiple Response |
| Exam Duration: | 120 minutes |
| Exam Price: | $245 USD |
| Related Certifications: | Oracle Database 10g Administrator Certified Associate (OCA) Oracle Database 10g Administrator Certified Professional (OCP) |
| Available Languages: | English |
| Recommended Training: | Oracle University Training |
| Exam Registration: | Oracle Certification Portal |
| Sample Questions: | Oracle 1Z0-048 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: High Availability Concepts | - RAC recovery scenarios - Failover mechanisms |
| Topic 2: Oracle RAC Architecture | - Cluster fundamentals and components - Shared storage concepts - Cache Fusion and interconnect communication |
| Topic 3: Installation and Configuration | - Installing Oracle Clusterware - Preparing RAC environment - Installing RAC database software |
| Topic 4: Performance and Tuning | - Monitoring RAC performance - Troubleshooting performance issues - Load balancing and failover |
| Topic 5: Cluster and Database Administration | - Backup and recovery in RAC - Services configuration and management - Managing RAC instances |
Oracle Database 10g R2: Administering RAC Sample Questions:
Question 1
Your company has certain standard practices for technology and you are configuring ASM disk groups for your four-node RAC cluster. The company guidelines suggest that there is one disk group for the flash recovery area that is shared by all databases and a separate disk group for the database area of all databases. Which three exceptions exist that may require you to create additional disk groups? (Choose three.)
A. There are large nonpartitioned tables accessed frequently using indexes.
B. Some databases operate in ARCHIVELOGMODE and others in NOARCHIVELOGMODE.
C. Applications using the databases have different Service-Level Agreements for response time and throughput.
D. The retention policy for backups are different for different databases.
E. Some database instances are shut down every night while others are always running.
F. The disk farm has different disk models with different characteristics and ages.
G. There are partitioned tables where the older partitions are in read-only tablespaces and seldom accessed, but the more recent partitions are frequently accessed.
Question 2
In which directory should you put your callout scripts on your RAC nodes?
A. $ORA_CRS_HOME/racg/usrco/
B. JORACLE_HOME/racg/usrco/
C. $ORA_CRS_HOME/opmn/conf/
D. $ORACLE_HOME/opmn/conf/
Question 3
You are creating a database in your RAC implementation. You are using the DBCA to create the database, and you selected the Raw Devices Mapping file on one of the screens of the DBCA. What is the reason for selecting this file?
A. You want to provide the DBCA with a list of all the storage devices that are currently bound to a raw interface.
B. You want to set the appropriate raw partition for each database file.
C. You want to configure an ASM diskgroup containing raw devices.
D. You want the DBCA to bind the partitions to raw devices.
Question 4
What is true about Virtual Internet Protocol Configuration Assistant (VIPCA)?
A. The VIP for each node should be bound to the adapter that is acting as the private interconnect.
B. The VIPCA application must be run manually on all nodes in the cluster.
C. The ifconfig -a command is used to back out a faulty VIPCA configuration.
D. Each Virtual IP (VIP) configured requires an unused and resolvable IP address.
Question 5
Your company asked you to implement RAC to enhance the scalability and availability of the database that you manage. Your coworker suggested that you use ASM as the only storage option. However, you implemented RAC with Automatic Storage Management (ASM) as well as OCFS as storage options. What are the reasons for implementing both OCFS and ASM as storage options? (Choose all that apply.)
A. You do not want to use raw devices to store voting and OCR files.
B. You require OCFS to store archive log files because ASM does not support these files.
C. You do not want to store any file other than voting and OCR files in ASM.
D. You want to use the Oracle Managed Files (OMF) feature but that is not supported by ASM.
E. You want to avoid keeping Oracle binaries on local storage.
Solutions:
| Question 1 Answer: C,F,G | Question 2 Answer: A | Question 3 Answer: B | Question 4 Answer: D | Question 5 Answer: A,E |
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