1Z0-1072-25 Question 88
Single answerYou have a multi-region deployment in Oracle Cloud Infrastructure (OCI) where one region operates your primary application stack and another region hosts a disaster recovery environment. Both VCNs need to exchange data securely and privately across regions without traversing the public Internet. Which connectivity option should you implement to meet these requirements?
- A
Use a Local Peering Gateway (LPG) between the two VCNs
- B
Set up a Remote Peering Gateway (RPG) and peer the VCNs across regions
- C
Create a NAT Gateway in each VCN for secure cross-region communication
- D
Use a Service Gateway to directly connect both VCNs in different regions
Show answer and explanation
Correct answer: B
Explanation
To enable private VCN communication across different OCI regions, you configure Remote Peering Gateways in each region and set up a remote peering connection. This approach ensures that traffic remains private within Oracle� backbone. Local Peering Gateways are effective only within a single region, while NAT and Service Gateways are designed for other specific use cases. For more details, see Oracle Cloud Infrastructure documentation on Remote VCN Peering: https://docs.oracle.com/en-us/iaas/Content/Network/Tasks/remoteVCNpeering.htm.
- A. Incorrect.
Local Peering Gateways only support VCN peering within the same region. They do not provide cross-region connectivity.
- B. Correct.
Remote Peering Gateways allow you to establish a private peering connection between VCNs located in different regions, avoiding public Internet routes.
- C. Incorrect.
NAT Gateways provide outgoing Internet access for private resources, but they do not facilitate private cross-region connectivity between VCNs.
- D. Incorrect.
Service Gateways allow VCN resources to privately access certain OCI services (e.g., Object Storage) without leaving the Oracle network, but they are not used for VCN-to-VCN peering across regions.