- Exam Code: 1Z0-048
- Exam Name: Oracle Database 10g R2: Administering RAC
- Updated: Aug 19, 2026
- Q & A: 150 Questions and Answers
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| Section | Objectives |
|---|---|
| Installation and Configuration | - Installing Oracle Clusterware - Preparing RAC environment - Installing RAC database software |
| Oracle RAC Architecture | - Cache Fusion and interconnect communication - Shared storage concepts - Cluster fundamentals and components |
| Performance and Tuning | - Load balancing and failover - Monitoring RAC performance - Troubleshooting performance issues |
| High Availability Concepts | - RAC recovery scenarios - Failover mechanisms |
| Cluster and Database Administration | - Managing RAC instances - Backup and recovery in RAC - Services configuration and management |
1. Which two statements are true regarding high availability in a RAC environment? (Choose two.)
A) When you have a serious crash of your primary site, it is your responsibility to initiate the failover to the standby site in case you are not using the Fast-Start Failover feature.
B) When you have a serious crash of your primary site, Data Guard Broker automatically initiates the failover to the standby site.
C) You can have multiple RAC instances apply standby redo log files to the standby database.
D) It is the Data Guard Broker's responsibility to communicate with CRS during a switchover operation to stop and start services according to each Data Guard site role.
E) Each primary RAC instance must send its redo stream to the same standby RAC instance.
2. 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.
3. You are requested to make your Web server, which accesses a clustered Oracle database, highly available. Which solution would you propose?
A) Bring your Web server under control of the Oracle Clusterware and use the private IP address to reach your Web server from your clients.
B) Bring your Web server under control of the Oracle Clusterware and use an application VIP address to reach your Web server from your clients.
C) Bring your Web server under control of the Oracle Clusterware and use the RAC VIP address to reach your Web server from your clients.
D) Bring your Web server under control of the Oracle Clusterware and use the public IP address to reach your Web server from your clients.
E) Because you cannot use Oracle Clusterware to protect your Web server, you come up with an operating system solution.
4. You decide to implement Fast Start Failover for your RAC Data Guard configuration to improve your high availability strategy. Which are the two valid locations for the DG Broker configuration files? (Choose two.)
A) on the shared storage at the observer location
B) on the local storage at the observer location
C) on the storage that is shared between the observer location and at least one of the instances that is part of the data guard configuration
D) on the shared storage at the standby location
E) on the shared storage at the primary location
5. After migrating from a 10g R1 cluster to 10g R2, you decide to multiplex your voting disk. Which are the two ways in which you can accomplish this task? (Choose two.)
A) You should not use symbolic links.
B) You may use the VIPCA utility to add new voting disks.
C) You can add additional voting disks online.
D) You must add additional voting disks offline.
E) You may use the command:
crsctl add ess votedisk <new voting disk path>
Solutions:
| Question # 1 Answer: A,D | Question # 2 Answer: A | Question # 3 Answer: B | Question # 4 Answer: D,E | Question # 5 Answer: C,E |
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