1Z0-1072-25 Question 89
Select 2You have two Virtual Cloud Networks (VCNs) in different OCI regions that need to securely communicate with each other. You also want traffic from your on-premises data center to access both VCNs without traversing the public Internet. Which two OCI features should you configure to meet these requirements?
- A
Use local VCN peering to link the two VCNs across regions
- B
Use a Dynamic Routing Gateway (DRG) to establish on-premises connectivity
- C
Use remote VCN peering to connect the two VCNs across regions
- D
Use a NAT Gateway to direct on-premises traffic into the VCN
Show answer and explanation
Correct answers: B, C
Explanation
To connect two VCNs across different OCI regions, you must configure remote VCN peering. Additionally, a DRG is required to securely extend your on-premises network to each region. Local VCN peering would not work for cross-region communication, and a NAT Gateway is intended for outbound connectivity to the Internet rather than forming an on-premises connection to your VCN. For reference, see Oracle documentation on configuring Remote Peering Connections and Dynamic Routing Gateways for hybrid network topologies.
- A. Incorrect.
Option 1: Local VCN peering is only for VCNs within the same region, so it cannot connect VCNs across different regions. This would not meet the cross-region connectivity requirement.
- B. Correct.
Option 2: A Dynamic Routing Gateway (DRG) is used to enable secure connectivity from on-premises environments to OCI resources. Configuring a DRG in each region allows on-premises traffic to reach both VCNs.
- C. Correct.
Option 3: Remote VCN peering is designed for secure Private IP communication between VCNs in different regions. This is needed to link the two VCNs across regions without using public endpoints.
- D. Incorrect.
Option 4: A NAT Gateway is typically used to provide outbound Internet access for resources in private subnets, not to carry on-premises traffic into OCI. This would not address the on-premises connectivity requirement.