1Z0-1151-25 Question 71
Select 2An organization is running a data analytics application on Oracle Cloud Infrastructure (OCI) and wants to connect privately to a microservices environment in Google Cloud Platform (GCP). They have set up Oracle Interconnect for Google Cloud but notice that some of their GCP subnets cannot communicate with OCI subnets. Which TWO steps must they verify are correctly configured for private traffic to flow between the two clouds?
- A
Set up a Cloud Router in GCP and configure BGP route advertisements for all intended GCP subnets.
- B
Enable an Internet Gateway on OCI and route traffic to the Google Cloud Interconnect for private subnet traffic.
- C
Create a Dynamic Routing Gateway (DRG) in OCI and attach it to the VCN housing the analytics application.
- D
Enable a NAT Gateway in GCP to translate internal IPs before routing traffic over the Interconnect.
- E
Use local route advertisements in OCI to ensure that all subnets in GCP are recognized in the VCN's route tables.
Show answer and explanation
Correct answers: A, C
Explanation
To implement Oracle Interconnect for Google Cloud, you must establish private connectivity through a Dynamic Routing Gateway (DRG) in OCI and a Cloud Router with BGP on the GCP side. The DRG attaches to the VCN for routing in OCI, while the Cloud Router advertises (and learns) subnets in GCP. Using an Internet Gateway or NAT Gateway for traffic would introduce public routing and negate the purpose of private interconnection. Refer to Oracle's documentation on 'Oracle Interconnect for Google Cloud' and Google Cloud's 'Hybrid Connectivity' guides to confirm up-to-date architectural steps and best practices.
- A. Correct.
CORRECT - A Cloud Router in GCP is required to establish BGP sessions with OCI through the Interconnect. Advertisements of GCP subnets over BGP allow OCI to learn and route traffic to those networks privately.
- B. Incorrect.
INCORRECT - The Internet Gateway in OCI is used for public internet access, not for private connectivity. Using it for traffic to GCP interconnect would break the intended private path.
- C. Correct.
CORRECT - You need a DRG in OCI. The DRG serves as a hub for private connectivity and must be attached to the Virtual Cloud Network (VCN) where your application runs to route traffic effectively.
- D. Incorrect.
INCORRECT - A NAT Gateway primarily translates private IP addresses to a public IP for outgoing internet-bound traffic. It is not required for private connectivity between OCI and GCP through the Interconnect.
- E. Incorrect.
INCORRECT - While you need proper route table entries in OCI, advertising GCP subnets must happen via BGP from GCP� Cloud Router, not simply local route advertisements in OCI alone.