Google Cloud Professional Cloud Network Engineer — Question 75

You are deploying a global external TCP load balancing solution and want to preserve the source IP address of the original layer 3 payload.
Which type of load balancer should you use?

Answer options

• A. HTTP(S) load balancer
• B. Network load balancer
• C. Internal load balancer
• D. TCP/SSL proxy load balancer

Correct answer: D

Explanation

The TCP/SSL proxy load balancer (D) is designed to preserve the source IP address of the incoming traffic, making it the correct choice for this scenario. In contrast, the other options, such as the HTTP(S) load balancer (A) and the Network load balancer (B), do not maintain the original source IP in the same manner, and the Internal load balancer (C) is not applicable in a global external context.