Google Associate Cloud EngineerDeploying and implementing a cloud solutionMedium
A company is migrating an existing on-premises application that uses UDP multicast for service discovery to Google Cloud. The application architecture relies heavily on this multicast communication within its network segment. Which Google Cloud networking feature should be enabled to support this functionality?
- ACloud VPN
- BMulticast Routing
- CShared VPC
- DVPC Network Peering
Show answer & explanationAnswer & explanation
Correct answer: B. Multicast Routing
Google Cloud's Multicast Routing feature allows UDP multicast traffic to be routed within a Virtual Private Cloud (VPC) network, which is essential for applications that depend on multicast for service discovery or other communication patterns.
Why the other options are wrong
- A. Cloud VPN establishes a secure connection to an on-premises network, not for internal VPC multicast.
- C. Shared VPC allows multiple projects to use a common VPC network, but doesn't directly enable multicast functionality.
- D. VPC Network Peering connects two VPC networks, but doesn't inherently enable multicast within a single VPC.
Google Cloud Multicast Routing
A Google Cloud feature that enables the routing of UDP multicast traffic within a Virtual Private Cloud (VPC) network.
- Supports applications relying on multicast for service discovery or communication.
- Requires specific configuration on the VPC network.
- Typically used for migrating legacy applications that utilize multicast.
Memory trick: If you need to 'multi-cast' a message to many, you need the right 'routing' path.