* Requirement Analysis:The solution must ensure private access to Object Storage without public internet traversal, while being cost-effective.
* Evaluate OCI Components:
* Internet Gateway:Provides public internet access, unsuitable for private connectivity.
* NAT Gateway:Allows outbound internet access from private subnets, but traffic still exits OCI.
* Service Gateway:Enables private access to OCI services like Object Storage within the same region.
* DRG with FastConnect:Used for on-premises connectivity, not intra-OCI service access.
* Option Assessment:
* A:Uses public internet, violating the security policy.
* B:HTTPS encrypts data, but traffic traverses the internet via NAT, violating the policy.
* C:Service Gateway keeps traffic within OCI's private network, meeting security and cost goals.
* D:Overly complex and costly, with public endpoints contradicting the requirement.
* Conclusion:Service Gateway with regional Object Storage endpoints ensures private, secure, and cost- effective access.
The Service Gateway is designed for private access to OCI services like Object Storage, avoiding the public internet. The Oracle Networking Professional study guide states, "A Service Gateway allows instances in a private subnet to access supported OCI services without an Internet Gateway or NAT Gateway, ensuring traffic remains within the Oracle network" (OCI Networking Documentation, Section: Service Gateway).
Using the Oracle Services Network service CIDR label for the region ensures compatibility with Object Storage endpoints, optimizing cost and security.