Google Professional Cloud Network Engineer Question 242
Select 2Google Cloud PlatformYou are designing a hybrid cloud network architecture for your organization, which has an on-premises data center connected to Google Cloud using a Cloud VPN. You need to configure routing to ensure that traffic between your on-premises network and Google Cloud VPC flows correctly. The on-premises network has a dynamically changing IP range. Which of the following routing configurations would meet the requirements?
- A
Configure dynamic routing using Border Gateway Protocol (BGP) on Cloud Router and your on-premises router.
- B
Set up static routes on your Google Cloud VPC and your on-premises router for all possible IP ranges.
- C
Enable dynamic routing with a Cloud Router and configure it to use regional dynamic routing mode.
- D
Enable dynamic routing with a Cloud Router and configure it to use global dynamic routing mode.
- E
Use only static routes on the Google Cloud VPC and disable dynamic routing on the Cloud Router.
Show answer and explanation
Correct answers: A, D
Explanation
To ensure proper routing between an on-premises network with dynamically changing IP ranges and a Google Cloud VPC, you need to use dynamic routing with a Cloud Router. BGP facilitates automatic route updates, and using global dynamic routing ensures that the routes are propagated across all regions, supporting a scalable and efficient hybrid cloud architecture.
- A. Correct.
Correct. BGP with a Cloud Router is required for dynamic routing, which allows automatic route updates when the on-premises IP range changes.
- B. Incorrect.
Incorrect. Static routes do not support dynamically changing IP ranges, making them unsuitable for this scenario.
- C. Incorrect.
Incorrect. While regional dynamic routing mode allows dynamic route updates, it limits the scope of route propagation to a specific region. This is not ideal for hybrid networking with global traffic requirements.
- D. Correct.
Correct. Global dynamic routing mode allows dynamic route propagation across all regions, which is important for hybrid cloud setups with distributed resources.
- E. Incorrect.
Incorrect. Using only static routes would not support dynamically changing IP ranges and would require manual updates, which is not efficient or scalable.