Identify which of the following are considered custom metrics.

Custom metrics are metrics that are specific to an application or use case and are not provided out-of-the-box by monitoring systems, allowing for tailored insights and analytics.

The option "Total.Insurance.Claimed" is a prime example of a custom metric because it likely represents a specific business metric related to insurance claims processing. It would have been created by a user to track a unique aspect of their business performance that is not typically covered by standard metrics. This customized approach enables organizations to measure and monitor performance indicators that are critical to their unique operations.

In contrast, the other options mentioned are general or built-in metrics. System.Mem.Used is a standard metric reflecting memory usage within a system, which is commonly monitored across various environments. CPU.Usage similarly refers to the overall CPU activity, again a standard metric provided by many monitoring tools. Users.Posts.Upvoted could potentially have elements of customization, but it leans more towards being a predefined metric often used in measuring user engagement on platforms.

By identifying Total.Insurance.Claimed as a custom metric, one acknowledges its role in providing insights specific to the organization’s operational goals, which is essential for effective monitoring and decision-making.