Exam Professional Cloud DevOps Engineer topic 1 question 113 discussion

To efficiently monitor the number of requests from a specific IP address in a web application deployed to a Compute Engine managed instance group with Ops Agent installed, the recommended approach is to configure the Ops Agent with a logging receiver and create a logs-based metric, as outlined in (Option A). By configuring the Ops Agent with a logging receiver, it can collect and forward relevant log data to Cloud Monitoring. Subsequently, creating a logs-based metric allows you to define a metric based on the extracted information from the logs, specifically focusing on the number of requests from the suspicious IP address. This setup minimizes operational overhead by leveraging existing infrastructure and provides a streamlined way to monitor and analyze the targeted metric related to the suspicious activity, aiding in swift detection and response to potential security issues.

a log based metric is nescessary

https://cloud.google.com/monitoring/agent/ops-agent/configuration#logging-receivers fluent_forward section

Exactly what user xhilmi said.

As the question asks "to view the number of requests," I would go with A since there is a crucial thing: "Create a logs-based metric".

https://cloud.google.com/monitoring/agent/ops-agent/configuration#logging-receivers fluent_forward section

メトリクスレシーバーでは、hostmetricsしか選択することができない。これにはIPアドレスはふくまれていない。よってDは候補から外れる。私はAを選択する。 https://cloud.google.com/monitoring/agent/ops-agent/configuration

D is answer.

Option D looks good for me

Answer Should be D ,to view the number of requests from a specific IP address with minimal operational overhead, you can configure the Ops Agent with a metrics receiver and use logs-based metrics