Google Cloud Professional Cloud Security Engineer — Question 16

A company has redundant mail servers in different Google Cloud Platform regions and wants to route customers to the nearest mail server based on location.
How should the company accomplish this?

Answer options

• A. Configure TCP Proxy Load Balancing as a global load balancing service listening on port 995.
• B. Create a Network Load Balancer to listen on TCP port 995 with a forwarding rule to forward traffic based on location.
• C. Use Cross-Region Load Balancing with an HTTP(S) load balancer to route traffic to the nearest region.
• D. Use Cloud CDN to route the mail traffic to the closest origin mail server based on client IP address.

Correct answer: A

Explanation

The correct answer is A, as TCP Proxy Load Balancing provides a global load balancing service that can effectively route traffic to the nearest mail server based on client location. Option B is incorrect because Network Load Balancer is not designed for global load balancing. Option C is not suitable as HTTP(S) load balancers are primarily for web traffic, not for mail protocols. Option D is also wrong because Cloud CDN is not intended for routing mail traffic.