Answer-first summary for fast verification
Answer: Configure multiple regional internal passthrough Network Load Balancers and enable global access. Use DNS routing policies to balance traffic across regions.
The application is non-HTTP and requires preserving the client's true source IP. Internal passthrough Network Load Balancers (NLB) preserve the client's IP address because they operate at layer 4 without terminating connections, unlike proxy-based NLBs or Application Load Balancers. Using multiple regional internal passthrough NLBs with global access allows cross-region connectivity within the Shared VPC, and DNS routing policies (e.g., Google Cloud Global Traffic Manager) balance traffic across regions. Option C is invalid as cross-region internal NLBs do not exist, and proxy-based options (A/B) would mask the client IP unless Proxy Protocol is used, which isn't mentioned here. Thus, the correct choice is D.
Author: LeetQuiz Editorial Team
Ultimate access to all questions.
Your organization runs a highly available non-HTTP application that operates on multiple TCP ports across multiple regions. You need to design a load balancing solution within the same Shared VPC where the service will be accessed, ensuring the client's true source IP address is preserved in the IP header. Public internet access is not required. What is the recommended approach?
A
Configure multiple regional internal proxy Network Load Balancers and enable global access. Use DNS routing policies to balance traffic across regions.
B
Configure multiple regional internal Application Load Balancers and enable global access. Use DNS routing policies to balance traffic across regions.
C
Configure a single cross region internal proxy Network Load Balancer.
D
Configure multiple regional internal passthrough Network Load Balancers and enable global access. Use DNS routing policies to balance traffic across regions.
No comments yet.