After a recent security incident, your startup company wants better insight into what is happening in the Google Cloud environment. You need to monitor unexpected firewall changes and instance…

While creating a log sink to forward logs is a valid step, it doesn't inherently provide "insight" or monitoring capabilities without an additional tool to process and alert on those forwarded logs, making it less simple for direct monitoring compared to log-based metrics.

Cloud Logging captures Cloud Audit Logs for administrative activities like firewall changes and instance creation. Creating log-based metrics allows counting these specific events, and then Cloud Monitoring can be used to set up alerts based on thresholds of these metrics, providing a simple, integrated, and serverless monitoring solution.

Installing Kibana on a Compute Engine instance introduces additional infrastructure, management overhead, and complexity, which goes against the company's preference for simple solutions.

Google Cloud firewall rules logging primarily logs traffic allowed or denied by firewall rules, not changes to the rules themselves or instance creation, so it wouldn't directly address the requirement to monitor firewall *changes* and *instance creation*.