Which two configurations are fundamental for deploying a successful Data Guard?

The correct choice highlights the importance of having both database systems in the same shape type for a successful deployment of Oracle Data Guard. When both the primary and standby databases are configured using the same shape type, it ensures that they have similar performance capabilities and resource allocations. This kind of uniformity is crucial for maintaining high availability and disaster recovery since it allows the standby database to take over seamlessly if the primary fails.

In a Data Guard configuration, disparities in shape types could lead to challenges such as performance bottlenecks or limitations when transitioning operations from primary to standby systems. Having both the primary and standby database on the same shape ensures balanced workloads and optimized resource usage, which are key to a reliable and efficient Data Guard setup.

Different storage types or configurations for databases can complicate the replication and recovery processes, as differences may result in synchronization issues or difficulties in managing data consistency. Similarly, while egress rules and configuration details are essential for network connectivity and security, they do not fundamentally affect the core functionality and performance being addressed by having the same shape type.