- Exam Code: 1Z0-048
- Exam Name: Oracle Database 10g R2: Administering RAC
- Updated: Sep 15, 2026
- Q & A: 150 Questions and Answers
Oracle 1Z0-048 Exam : Oracle Database 10g R2: Administering RAC
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Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Cluster and Database Administration | - Services configuration and management - Backup and recovery in RAC - Managing RAC instances |
| Topic 2: Installation and Configuration | - Preparing RAC environment - Installing RAC database software - Installing Oracle Clusterware |
| Topic 3: High Availability Concepts | - Failover mechanisms - RAC recovery scenarios |
| Topic 4: Oracle RAC Architecture | - Cluster fundamentals and components - Cache Fusion and interconnect communication - Shared storage concepts |
| Topic 5: Performance and Tuning | - Load balancing and failover - Troubleshooting performance issues - Monitoring RAC performance |
Oracle Database 10g R2: Administering RAC Sample Questions:
Question #1
You and your colleague are working with Oracle Support on a database instance stability issue. The Oracle Support engineer wants you to issue a crsctl debug log crs ?crsctl debug log crs command to assist you in your troubleshooting assignment. Why does the Oracle Support engineer want you to do this?
- A. to enable extra debugging on the currently running CRS daemon
- B. to list which debugging options are enabled on the CRS daemon
- C. to enable extra debugging on the currently running and CRS daemons as well as those that will run in the future
- D. to list what debugging options are available on the CRS daemon
- E. to enable extra debugging on the CRS daemon the next time the CRS daemon is started
Correct Answer: C π³οΈ
Question #2
You defined the HR service using the following command:
srvctl add service -d RACDB -s HR -r RAC02.RAC03 -a RAC01
After a while, you realize that there is a workload peak on the HR service, and you decide to temporarily start HR on the RAC04 instance.
Which command or series of commands would you use to start HR on RAC04?
- A. srvctl modify service -d RACDB -s HR -i RAC02.RAC03.RAC04 -a RAC01
- B. srvctl start service -d RACDB -s HR -i RAC04
- C. srvctl remove service -d RACDB -s HR Srvctl add service -d RACDB -s Hr-r RAC02.RAC03.RAC04 -a RAC01 srvctl start service -d RACDB -s HR
- D. srvctl modify service -d RACDB -s HR -i RAC02.RAC03.RAC04 -a RAC01 srvctl stop service -d RACDB -s HR srvctl start service -d RACDB -s HR
- E. srvctl remove service -d RACDB -s HR Srvctl add service -d RACDB -s Hr-r RAC02.RAC03.RAC04 -a RAC01
Correct Answer: D π³οΈ
Question #3
Which statement is true?
- A. You must use RMAN to migrate your data files to ASM storage.
- B. You must use RMAN to migrate your change-tracking file to ASM storage.
- C. You must use RMAN to migrate your flashback log files to ASM storage.
- D. You must use RMAN to migrate your online redo log files to ASM storage.
- E. You can migrate your entire database to ASM storage without shutting down your database.
- F. You must use RMAN to migrate yourtempfiles to ASM storage.
Correct Answer: A π³οΈ
Question #4
Your network administrator wants to know why you need extra IP addresses for your Oracle Real Applications Cluster now that you are upgrading from OracleSi to Oracle 10g. Which four statements would you use to explain to your network administrator the reason for requiring extra IP addresses? (Choose four.)
- A. Database clients should connect to a RAC database using VIPs for the best High Availability solution.
- B. The VIPs are used to circumvent network timeouts on the Cluster Interconnect.
- C. The VIPs should not be registered in the DNS.
- D. The VIPs should be registered in the DNS.
- E. A VIP would always accept a connection from a client.
- F. The VIPs are used to prevent connection request timeouts during client connection attempts.
- G. A VIP would notify its client when a failure occurs.
- H. The VIP addresses must be on the same subnet as the public host network addresses.
Correct Answer: A,D,F,H π³οΈ
Question #5
Which three statements are true regarding RAC instance startup and shutdown using SQL'Plus? (Choose three.)
- A. Using SQL*Plus to start and stop the RAC database instances is the preferred method because SQL*Plus is a Clusterware client.
- B. You can start multiple instances from a single SQL*Plus session on one node using Oracle Net Services connection strings.
- C. To start or shut down your local instance, initiate a SQL*Plus session connected as SYSDBA or SYSOPER, and then issue the required command.
- D. It is not possible to start up or shut down more than one instance at a time in SOL*Plus. so you cannot start or stop all the instances for a cluster database with a single SQL*Plus command.
Correct Answer: B,C,D π³οΈ
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