- Oracle RAC consists of a database that is represented in a clustered manner in the architecture.

- The cluster is the collection or pool of independent servers that make up one single system.

- Cluster architecture provides more flexibility to manage and follow a modular incremental approach to improve the fault errors and provide an incremental system.

- This architecture provides the maximum security in terms of ensuring high availability of the resources to the users.

- It provides the resources on demand and provides hardware architecture such that a single point of failure is being removed.

- The architecture provides the decoupling of the Oracle instance like the process and memory that are running on the server from the Oracle database.