A cluster has the metrics-server installed, and an HPA is configured to scale a Deployment based on CPU utilization. The HPA is not scaling, and 'kubectl describe hpa' shows 'FailedGetResourceMetric' in the events. What is the most likely cause?

The Deployment's pods do not have CPU requests defined.

The metrics-server is not running in the cluster.

The Deployment has more replicas than the HPA's maximum.

The HPA's target is set to a value higher than the pods' CPU limits.

Certified Kubernetes Administrator (CKA)

Domain 3Objective 3

Configure Workload Autoscaling CKA Practice Questions (Page 5)

Part of the Workloads and Scheduling domain, which accounts for 15% of the CKA exam. Linux Foundation does not publish an official question count, but from its 120-minute exam (~50–80 total, ~8–12 in this domain), expect 2–2 from this objective — we provide 24 practice questions to prepare you well beyond it. (estimate)

24questions here

5free pages

6concepts

15%of the exam

Questions 21–24

21expert · hard
A cluster has the metrics-server installed, and an HPA is configured to scale a Deployment based on CPU utilization. The HPA is not scaling, and 'kubectl describe hpa' shows 'FailedGetResourceMetric' in the events. What is the most likely cause?
Select an answer first
22foundation · easy
Which type of metric in a HorizontalPodAutoscaler is used to scale based on CPU or memory utilization of pods?
Select an answer first
23foundation · easy
Which kubectl command shows the current status and metrics of a HorizontalPodAutoscaler?
Select an answer first
24application · medium
A team wants to create an HPA for a Deployment named 'worker'. The HPA should scale between 2 and 10 replicas based on memory utilization, with a target of 80%. The Deployment's pods have a memory request of 512Mi. What is the target value for the memory metric in the HPA?
Select an answer first

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Configure Workload Autoscaling CKA Practice Questions (Page 5)

Questions 21–24

A cluster has the metrics-server installed, and an HPA is configured to scale a Deployment based on CPU utilization. The HPA is not scaling, and 'kubectl describe hpa' shows 'FailedGetResourceMetric' in the events. What is the most likely cause?

Which type of metric in a HorizontalPodAutoscaler is used to scale based on CPU or memory utilization of pods?

Which kubectl command shows the current status and metrics of a HorizontalPodAutoscaler?

A team wants to create an HPA for a Deployment named 'worker'. The HPA should scale between 2 and 10 replicas based on memory utilization, with a target of 80%. The Deployment's pods have a memory request of 512Mi. What is the target value for the memory metric in the HPA?

Keep studying — Workloads and Scheduling