Kubernetes Cloud Native Associate (KCNA) Certification 1 Practice Test

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What is the primary purpose of Kube-State-Metrics?

To collect application logs

To collect performance traces

To gather state metrics about the state of objects via the Kubernetes API

Kube-State-Metrics focuses on exposing the state of Kubernetes objects by reading the Kubernetes API and exporting those states as metrics that Prometheus can scrape. This means it doesn’t deal with logs or traces; instead, it translates the current status of resources like pods, deployments, nodes, and other API objects into metrics you can query and alert on. For example, you can see how many pods are Running versus Pending, how many replicas a deployment has versus how many are actually available, or the status of nodes. By pulling data from the API server rather than from hosts or applications, it provides a centralized view of the cluster’s object state, which complements other metrics like resource usage but focuses on the declarative state recorded in Kubernetes.

To provide networking metrics