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Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Installation and Configuration | - Preparing RAC environment - Installing Oracle Clusterware - Installing RAC database software |
| Topic 2: High Availability Concepts | - Failover mechanisms - RAC recovery scenarios |
| Topic 3: Performance and Tuning | - Load balancing and failover - Monitoring RAC performance - Troubleshooting performance issues |
| Topic 4: Cluster and Database Administration | - Backup and recovery in RAC - Managing RAC instances - Services configuration and management |
| Topic 5: Oracle RAC Architecture | - Cache Fusion and interconnect communication - Shared storage concepts - Cluster fundamentals and components |
Oracle Database 10g R2: Administering RAC Sample Questions:
After a power failure, you noticed that one of your cluster database instances did not start automatically, whereas all other instances came up successfully. What would you do to determine the precise cause for the instance startup failure? (Choose three.)
- A. Check the alert.log file that belongs to the instance that did not start.
- B. Check if the Oracle Clusterware is functional by using the CRSCTL command.
- C. Check the resource state by using the CRS_STAT command.
- D. Check the alert.log file that belongs to the Oracle Clusterware software.
- E. Check for OCR corruptions by using the OCRCHECK command.
- F. Enable extra debugging in the Oracle Clusterware software by using the CRSCTL command.
- G. Reboot the node where the failing instance resides to check if the problem is persistent.
Correct Answer: A,C,D 🗳️
You are about to bring your Web server under control of the Oracle Clusterware to make it highly available. Which actions do you need to perform to accomplish this task? (Choose all that apply.
- A. Once done, manage the Web server with SRVCTL
- B. Create an application VIP profile using crs_profile, register it with crs_register, set its permission with crs_setperm, and then start it using crs_start.
- C. Have the system administrator create an application VIP at the operating system level for you to use with the application.
- D. Write an action script that Oracle Clusterware would use to start, stop, and check the status of an application.
- E. Create an application profile using crs_profile, register it with crs_register, set its permission with crs_setperm, and then start it with crs_start.
Correct Answer: B,D,E 🗳️
You are considering issues involving backup and recovery of the voting disk. Select four correct statements. (Choose four.)
- A. To back up the voting disk, use the command ocrconfig -export.
- B. Use symbolic links to simplify recovery of the voting disk.
- C. Backup can be performed online.
- D. You can determine the voting disks currently used by CSS with the command crsctl query ess votedisk.
- E. If you lose your voting disk and do not have a backup, you must reinstall Oracle Clusterware. ]
Correct Answer: B,C,E 🗳️
You want check whether the group services node application is running on all the nodes in your cluster before you create a cluster database. Which utility can you use to make sure the node application is running on all nodes in the cluster?
- A. Isnrctl
- B. onsctl
- C. addnode.sh
- D. crsctl
- E. crs_stat
Correct Answer: E 🗳️
What should you do when creating a disk group that would store your RAC database?
- A. Make sure that ASM targets are accessible from Database Control.
- B. Make sure that all database instances are running in restricted mode.
- C. Make sure that the disk group is mounted by all ASM instances.
- D. Make sure that all database instances are functional.
Correct Answer: C 🗳️
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