1Z0-1104-25 Question 165
Select 3You manage a critical application running on multiple OCI Compute instances. Your security team needs to track CPU utilization, memory usage, and the number of active connections in real time. They also want an alert if CPU utilization stays above 80% for more than 10 minutes. Which three steps must you perform to accomplish these requirements using OCI Monitoring?
- A
Create a dynamic group containing the compute instances and an IAM policy to allow that group to publish custom metrics to OCI Monitoring.
- B
Enable OS Management on each instance, which automatically gathers both memory usage and connection metrics without any additional configuration.
- C
Use the default CPUUtilization metric provided by OCI to measure CPU usage without requiring extra setup.
- D
Set an alarm on the CPUUtilization metric that triggers if utilization remains above 80% for 10 minutes, and specify an OCI Notification topic for alerts.
Show answer and explanation
Correct answers: A, C, D
Explanation
In OCI, CPU utilization is automatically available through built-in metrics, while memory usage and custom application metrics (like connection counts) typically require publishing custom metrics via the OCI Monitoring service. Setup involves defining a dynamic group of instances authorized to push metrics, using IAM policies to grant permissions, and creating alarms that notify relevant teams based on threshold conditions. For detailed steps, consult OCI documentation on 'Publishing Custom Metrics' and 'Configuring Alarms and Notifications.'
- A. Correct.
Correct. To collect custom metrics (e.g., memory usage, active connections), you need a dynamic group and the proper IAM policy so your instances can publish those metrics to OCI Monitoring.
- B. Incorrect.
Incorrect. Enabling OS Management does not automatically capture memory usage or connection metrics without further agent or custom metric configuration. Additional setup is required to collect these metrics and publish them to OCI.
- C. Correct.
Correct. OCI provides the CPUUtilization metric out of the box for each compute instance, so no extra configuration is required to collect or view CPU usage.
- D. Correct.
Correct. Setting an alarm on the CPUUtilization metric with a threshold of 80% and a 10-minute duration ensures the security team will be notified if CPU usage remains high.