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Oracle 1Z0-048 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| High Availability and Recovery | - Backup and recovery strategies in clustered environments - Failover and recovery mechanisms in RAC |
| Oracle Real Application Clusters Architecture | - RAC instance architecture and Cache Fusion - Clusterware components and architecture |
| Installation and Configuration | - RAC database creation and configuration - Oracle Clusterware installation and setup |
| Performance and Troubleshooting | - Diagnosing RAC interconnect and cache fusion issues - RAC performance tuning and monitoring |
| Storage Management | - Automatic Storage Management (ASM) in RAC - Shared storage configuration and best practices |
| Administration and Maintenance | - Service management and workload balancing - Node management and cluster administration |
Oracle Database 10g R2: Administering RAC Sample Questions:
What should you do when creating a disk group that would store your RAC database?
- A. Make sure that all database instances are functional.
- B. Make sure that all database instances are running in restricted mode.
- C. Make sure that ASM targets are accessible from Database Control.
- D. Make sure that the disk group is mounted by all ASM instances.
Correct Answer: D 🗳️
The following are some of the tasks that are performed during a RAC implementation: 1) Setting the Oracle database-related environment variables 2) Creating a password file 3) Installing Management Service and Management Agent 4) Creating and editing the Raw Device Mapping file 5) Creating an ASM instance 6) Creating the Oracle Cluster Registry (OCR) file 7) Implementing the Transparent Application Failover (TAF) policy 8) Creating database services Identify the tasks that can be performed using the DBCA, or performed by the DBCA, during database creation in the RAC implementation.
- A. 2,3,5,7,8
- B. 2,3,4,6,7
- C. 1,2,3,5,6,8
- D. 1,3,4,6
- E. All the tasks
Correct Answer: A 🗳️
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. onsctl
- B. addnode.sh
- C. crs_stat
- D. Isnrctl
- E. crsctl
Correct Answer: C 🗳️
You are about to build a new Oracle Clusterware-based cluster and you want to make the installation process as smooth as possible. You decide to use the Cluster Verification Utility (CLUVFY) to check whether or not your system administrator has set up the hardware and system software correctly. Which two statements about CLUVFY are true? (Choose two.)
- A. CLUVFY cannot be used until the Oracle Clusterware is installed successfully.
- B. You can run CLUVFY only from a privileged operating system account.
- C. You have to install CLUVFY on all cluster nodes in order to use CLUVFY on other nodes than the one from which you perform the installation.
- D. You can run CLUVFY directly from the Oracle Clusterware distribution media.
- E. After the Oracle Clusterware installation, you can run CLUVFY from the Oracle Home that holds the CRS binaries.
- F. To use CLUVFY during the Oracle Clusterware installation, you have to download CLUVFY from the Oracle Technology Network (OTN) Web site and install it before you can use it.
Correct Answer: D,E 🗳️
You are implementing a three-node RAC setup in your company. You have already performed these tasks:
1) Hardware and OS configuration 2) Cluster file system installation 3) Clusterware installation You executed the following command in one of the nodes: cluvfy stage -pre dbinst -n all
What is the reason for executing this command?
- A. to check for the existence of Oracle database software installation files in the /stage directory on all the nodes
- B. to check whether the dbinst directory is available on all the nodes
- C. to check if the ORACLEJHOME environmental variable is set to a correct value or not before the database installation
- D. to check for node connectivity and Clusterware integrity
Correct Answer: D 🗳️
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