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Exam KCNA topic 1 question 192 discussion

Actual exam question from Linux Foundation's KCNA
Question #: 192
Topic #: 1
[All KCNA Questions]

What is the API that exposes resource metrics from the metrics-server?

  • A. custom.k8s.io
  • B. resources.k8s.io
  • C. metrics.k8s.io
  • D. cadvisor.k8s.io
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Suggested Answer: C 🗳️
by Zangi at July 18, 2025, 3:54 a.m.

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8378ffe
2 months, 2 weeks ago
Selected Answer: C
C!! The API that exposes resource metrics from the Kubernetes metrics-server is the Metrics API, specifically the metrics.k8s.io/v1beta1 API group. This API exposes two primary resource types: NodeMetrics: Provides resource usage information for individual nodes. PodMetrics: Provides resource usage information for individual pods. These metrics are accessible through the Kubernetes API server and are consumed by components like the Horizontal Pod Autoscaler (HPA) and Vertical Pod Autoscaler (VPA), as well as tools like kubectl top. The metrics-server collects this data from the Kubelets running on each node and exposes it through this standardized API.
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Zangi
4 months, 1 week ago
Selected Answer: B
The answer is B.
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