Practice Test Geeks(CKA) Certified Kubernetes Associate Practice Test
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Resource Monitoring Flashcards

6 cards from real CKA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Resource Monitoring flashcards as text

  1. What command shows CPU and memory usage of nodes in Kubernetes?

    Answer: kubectl top nodes

    kubectl top nodes displays real-time CPU and memory usage metrics for all nodes in the cluster, requiring metrics-server to be installed.

  2. What is the Metrics Server in Kubernetes?

    Answer: A cluster-wide aggregator of resource usage data

    Metrics Server collects CPU and memory usage data from kubelets on each node and makes it available through the Kubernetes API for HPA and kubectl top commands.

  3. What is a Horizontal Pod Autoscaler (HPA)?

    Answer: A controller that automatically scales Pod replicas based on metrics

    HPA automatically adjusts the number of Pod replicas in a Deployment based on observed CPU utilization or custom metrics, scaling up under load and down when idle.

  4. What command shows resource usage of Pods?

    Answer: kubectl top pods

    kubectl top pods displays CPU and memory consumption for each Pod, helping identify resource-hungry workloads.

  5. What are resource requests in Kubernetes?

    Answer: The minimum amount of resources guaranteed to a container

    Resource requests define the minimum amount of CPU and memory a container is guaranteed. The scheduler uses requests to decide which node can accommodate the Pod.

  6. What tool provides detailed cluster logging in Kubernetes?

    Answer: kubectl logs for individual Pods, plus cluster-level solutions like EFK stack

    kubectl logs retrieves Pod-level logs, while cluster-wide logging typically uses solutions like EFK (Elasticsearch, Fluentd, Kibana) or Loki for aggregated log management.

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Sources & references

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  1. docs.linuxfoundation.org — Exam format, test delivery, passing score, renewal, retake policy, score release, score validity, exam information · verified Oct 2026
  2. training.linuxfoundation.org — Eligibility, fees, test dates, time limit · verified Oct 2026