Google Professional Cloud Network Engineer Question 137
Single answerGoogle Cloud PlatformYour organization has a Google Cloud project where multiple Virtual Private Cloud (VPC) networks are connected using VPC Network Peering. You plan to deploy a new application that requires communication between VPC networks across different regions. The application also needs to dynamically discover routes as new subnets are added. What routing mode should you select to meet these requirements?
- A
Regional dynamic routing mode
- B
Global dynamic routing mode
- C
Static routing mode
- D
Default routing mode
Show answer and explanation
Correct answer: B
Explanation
To enable communication between VPC networks across different regions and dynamically discover routes, you need to use Global dynamic routing mode. This mode allows all subnets in all regions of the VPC to receive dynamic route updates, making it suitable for applications that require cross-regional communication and dynamic routing capabilities.
- A. Incorrect.
Regional dynamic routing mode limits dynamic route propagation to subnets in the same region as the Cloud Router. This would not allow seamless communication across different regions.
- B. Correct.
Global dynamic routing mode propagates dynamic routes to all subnets across all regions in the VPC. This is the appropriate choice for enabling communication between VPC networks across regions and dynamically discovering routes.
- C. Incorrect.
Static routing mode requires manually configuring routes, which does not meet the requirement for dynamic route discovery.
- D. Incorrect.
Default routing mode is not a valid routing mode for Cloud Router configurations. It does not address the requirements described in the scenario.