Oracle 1Z0-048 : Oracle Database 10g R2: Administering RAC
- Exam Code: 1Z0-048
- Exam Name: Oracle Database 10g R2: Administering RAC
- Updated: Oct 13, 2026
- Q & A: 150 Questions and Answers
About Oracle 1Z0-048 Exam
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Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Performance and Tuning | - Troubleshooting performance issues - Load balancing and failover - Monitoring RAC performance |
| High Availability Concepts | - RAC recovery scenarios - Failover mechanisms |
| Cluster and Database Administration | - Managing RAC instances - Services configuration and management - Backup and recovery in RAC |
| Installation and Configuration | - Installing Oracle Clusterware - Installing RAC database software - Preparing RAC environment |
| Oracle RAC Architecture | - Cluster fundamentals and components - Cache Fusion and interconnect communication - Shared storage concepts |
Oracle Database 10g R2: Administering RAC Sample Questions:
Which background process communicates load information to its listener?
- A. SMON
- B. MMON
- C. LMON
- D. PMON
Correct Answer: D π³οΈ
View the Exhibit.
You are asked to help a colleague to logically remove node NLEDUC2 from a RAC cluster
installation.
On observing the colleague's terminal, you notice the output as seen in the exhibit. Based on this,
which five additional steps would you recommend? Do not be concerned with the correct
sequence for the steps.
(Choose five.)
- A. Check that the node has been removed from the database and ASM inventories.
- B. Stop and restart the clusterware on NLEDUC1.
- C. Check that the software has been removed from the database and ASM homes on NLEDUC2.
- D. Remove the node from the clusterware.
- E. Remove the listener from NLEDUC2.
- F. Check that the database and ASM instances are all terminated on NLEDUC2.
- G. Check that the ONS configuration has been updated on the remaining node.
- H. Stop and restart the nodeapps on NLEDUC1.
Correct Answer: A,C,D,F,G π³οΈ
You have a well-tuned, non-RAC single instance Oracle database with several services, all of which perform perfectly. You plan to migrate the database to RAC in the next two weeks and all file systems would be shared using Oracle Cluster File System. After the migration, you want to perform a test to monitor RAC-specific tuning issues that would not have occurred on a non-RAC database. Which six areas would you monitor to determine whether there are RAC-specific performance problems after migration? (Choose six.)
- A. Services with applications using local context variables
- B. Services with applications that truncate large tables
- C. Interconnect latency
- D. Services with applications that have occasional queries, using index access on modestly sized tables
- E. Services with query-intensive applications relying on full table scans
- F. Services with applications that use external tables
- G. Services with insert-intensive applications that use Oracle sequences for index keys
- H. Instance recovery time
- I. Services with insert-intensive applications that generate their own keys without Oracle sequences
Correct Answer: B,C,E,G,H,I π³οΈ
To install Oracle Database 10g RAC on a UNIX platform, which four directories will you identify for use? (Choose four.)
- A. Oracle home directory (ORACLE_HOME)
- B. NET_ADMIN directory
- C. Oracle inventory directory
- D. CRS home directory (ORA_CRS_HOME)
- E. Oracle base directory (ORACLE_BASE)
- F. group services directory (GSDJHOME)
Correct Answer: A,C,D,E π³οΈ
After the cluster database has been successfully created, several postinstallation tasks should be completed. Identify three of them. (Choose three.)
- A. Back up the root.sh script.
- B. Set up additional required user accounts.
- C. Create the ASM instance.
- D. Initialize the cluster backup procedure.
- E. Verify the Enterprise Manager/Oracle Cluster Registry configuration by running srvctl config database -d db_name.
Correct Answer: A,B,E π³οΈ
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