1Z0-915-1

Main points of Oracle 1Z0-915-1 Test

The Oracle 1Z0-915-1 exam, "Oracle Install and Configure RAC and Grid Infrastructure," focuses on the installation and configuration of Oracle Grid Infrastructure and Oracle Real Application Clusters (RAC). The main points revolve around these core areas:

1. Grid Infrastructure: This forms the foundation for RAC. Key concepts include:

• Installation and Configuration: Understanding the prerequisites, the installation process itself (both single-instance and clustered), and configuring the various components of Grid Infrastructure. This includes network configuration (including VIPs and SCAN), storage configuration, and security settings.
• Clustering Technologies: Knowing how Oracle Clusterware works, including the various services and daemons involved (e.g., crsctl, srvctl). Understanding concepts like node voting, cluster interconnect, and high availability are crucial.
• Storage Configuration: Properly configuring storage for Grid Infrastructure, including ASM (Automatic Storage Management) instance configuration, disk groups, and storage redundancy.
• Troubleshooting: Being able to diagnose and resolve common Grid Infrastructure issues.

2. Real Application Clusters (RAC): This is where multiple database instances share the same physical data.

• Installation and Configuration: Similar to Grid Infrastructure, understanding the prerequisites, installation process, and configuration of RAC databases.
• RAC Architecture: A firm grasp of the RAC architecture, including the different components involved (database instance, listener, etc.) and how they interact.
• High Availability: Understanding how RAC provides high availability and failover mechanisms. This includes concepts like instance recovery, listener redirection, and resource management within the cluster.
• Network Configuration: Configuring the network appropriately for RAC, ensuring proper communication between nodes and clients. This includes understanding SCAN (Single Client Access Name).
• Data Management: Understanding how data is managed and protected in a RAC environment, including ASM (Automatic Storage Management) use for data storage.
• Troubleshooting: Being able to troubleshoot common RAC issues.

Overall, the exam tests your ability to:

• Plan and design: You should be able to plan and design a Grid Infrastructure and RAC environment based on given requirements.
• Implement and Configure: You need hands-on experience installing, configuring, and managing both Grid Infrastructure and RAC databases.
• Troubleshoot and Manage: You'll need to be able to diagnose and resolve common issues.

In summary, the 1Z0-915-1 exam requires a comprehensive understanding of Oracle's high-availability technologies, focusing heavily on the practical implementation and configuration aspects. Simply knowing the theory is insufficient; hands-on experience is essential.