1Z0-997-25 Question 131
Select 2You are setting up Oracle Interconnect for Google Cloud so that an application running in Oracle Cloud Infrastructure (OCI) can communicate with an Oracle Database instance running on Google Cloud. After configuring the private cross-cloud interconnect, the application still cannot reach the database using its private IP address. Which two actions must you take to ensure seamless private connectivity between OCI and your Oracle Database@Google Cloud instance?
- A
- Configure a Google Cloud Router to advertise the subnet range of the Oracle Database to OCI using BGP.
- B
- Add a route rule in the Dynamic Routing Gateway (DRG) on OCI to forward traffic for the database subnet to Google Cloud.
- C
- Set up an Internet Gateway on OCI to enable inbound database connections from Google Cloud.
- D
- Configure an external HTTPS load balancer on Google Cloud to redirect traffic to the database instance.
- E
- Enable Default NAT Gateway on Google Cloud to provide outbound Internet access for the database instance.
Show answer and explanation
Correct answers: A, B
Explanation
To establish private IP connectivity between OCI and Google Cloud for your Oracle Database, you must enable private dynamic routing in both environments. On the Google Cloud side, a Cloud Router advertises the database subnets so OCI knows how to reach them. On the OCI side, configuring the DRG routing rules ensures that traffic for the Google Cloud subnets is forwarded over the Interconnect. Refer to Oracle and Google Cloud documentation on 'Setting up the Google Cloud Interconnect with OCI DRG' and 'Configuring Cloud Router for Dedicated Interconnect or Partner Interconnect' for detailed steps.
- A. Correct.
Explanation for Option 1: Correct. Using a Cloud Router on Google Cloud to advertise the database subnet allows OCI to learn the private IP ranges of the database. This is a key requirement for dynamic private routing between the two clouds and enables private IP connectivity over the Interconnect.
- B. Correct.
Explanation for Option 2: Correct. Configuring the DRG in OCI to route traffic destined for the Google Cloud database subnet to the Interconnect is essential. Without a route rule pointing to Google Cloud, traffic intended for the database instance would not be forwarded properly.
- C. Incorrect.
Explanation for Option 3: Incorrect. An Internet Gateway receives traffic from the public Internet, but in this scenario, you need private, cross-cloud connectivity. Internet Gateways do not facilitate private routing between OCI and Google Cloud.
- D. Incorrect.
Explanation for Option 4: Incorrect. An external HTTPS load balancer routes traffic from the public internet or external clients into the Google Cloud environment. For private database traffic over the Interconnect, you do not need an external load balancer.
- E. Incorrect.
Explanation for Option 5: Incorrect. A NAT Gateway on Google Cloud only provides outbound internet access for private resources. It does not help with private IP routing over the OCI-Google Cloud Interconnect.