Google Professional Cloud Network Engineer Question 279
Single answerGoogle Cloud PlatformYour organization has multiple Virtual Private Clouds (VPCs) in Google Cloud, each belonging to a different department. You need to set up a network topology that facilitates centralized control of inter-VPC communication while allowing scalable and efficient resource sharing between the VPCs. Which VPC topology would best suit this requirement?
- A
Star topology
- B
Hub-and-spoke topology
- C
Mesh topology
- D
Flat topology
Show answer and explanation
Correct answer: B
Explanation
The hub-and-spoke topology is the most appropriate choice for this scenario because it allows centralized control by using a hub VPC to manage communication between multiple spoke VPCs. This topology is highly scalable and efficient for inter-VPC communication while maintaining a clear structure. Other options, like mesh or flat topology, are either too complex to manage at scale or lack centralized control.
- A. Incorrect.
Star topology involves connecting nodes in a central hub-like structure, but it is not explicitly designed for inter-VPC communication in Google Cloud and lacks the scalability provided by a hub-and-spoke topology.
- B. Correct.
Hub-and-spoke topology is designed for scenarios where centralized control is required. In Google Cloud, this topology utilizes a central hub VPC to manage and route inter-VPC communication, making it ideal for this use case.
- C. Incorrect.
Mesh topology connects every VPC directly to every other VPC. While it ensures full connectivity, it is not efficient or scalable for environments with many VPCs due to high management complexity and peering limits.
- D. Incorrect.
Flat topology assumes all VPCs are connected equally without hierarchy. This structure does not align with the need for centralized control and management in the given scenario.