Exam Professional-Cloud-Network-Engineer Topic 3 Question 121 Discussion

Actual exam question for Google's Professional-Cloud-Network-Engineer exam
Question #: 121
Topic #: 3

You are developing an HTTP API hosted on a Compute Engine virtual machine instance that must be invoked only by multiple clients within the same Virtual Private Cloud (VPC). You want clients to be able to get the IP address of the service. What should you do?

A. Reserve a static external IP address and assign it to an HTTP(S) load balancing service's forwarding rule. Then, define an A record in Cloud DNS. Clients should use the name of the A record to connect to the service. B. Reserve a static external IP address and assign it to an HTTP(S) load balancing service's forwarding rule. Clients should use this IP address to connect to the service. C. Ensure that clients use Compute Engine internal DNS by connecting to the instance name with the url
https://[INSTANCE_NAME].[ZONE].c.[PROJECT_ID].internal/. D. Ensure that clients use Compute Engine internal DNS by connecting to the instance name with the url
https://[API_NAME]/[API_VERSION]/.

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