A node is at 80% memory usage, but one pod on it is using 90% of the node's memory. Other pods are using little. What is the best action?

Move the high-memory pod to another node

You run kubectl top nodes and see that one node shows 85% CPU usage while others are below 30%. What does this indicate?

That node is underutilized and can accept more workloads.

That node has a hardware failure.

That node is a bottleneck and may need workload redistribution.

That node is running the control plane components.

You run kubectl top pods and see a pod using 500m CPU and 256Mi memory. The pod has a CPU limit of 1000m and memory limit of 512Mi. What can you conclude?

The pod is using half of its CPU limit and half of its memory limit.

The pod is underutilized and should be scaled down.

The pod is about to be terminated for exceeding limits.

In the output of kubectl top nodes, what does the '%CPU' column represent?

The percentage of CPU cores assigned to the node by the cloud provider

The percentage of CPU requested by pods on the node

The percentage of CPU allocated to the kubelet

The percentage of total CPU capacity of the node currently in use

A pod is repeatedly being OOM-killed. You need to determine if it's due to a memory leak or insufficient limits. What is the best approach?

Check the pod's logs for OOM events

Immediately increase the memory limit

Monitor memory usage over time with kubectl top pods

Certified Kubernetes Administrator (CKA)

Domain 2Objective 3

Monitor Cluster and Application Resource Usage CKA Practice Questions (Page 4)

Part of the Troubleshooting domain, which accounts for 30% of the CKA exam. Linux Foundation does not publish an official question count, but from its 120-minute exam (~50–80 total, ~15–24 in this domain), expect 3–5 from this objective — we provide 21 practice questions to prepare you well beyond it. (estimate)

21questions here

5free pages

4concepts

30%of the exam

Questions 16–20

16expert · hard
A node is at 80% memory usage, but one pod on it is using 90% of the node's memory. Other pods are using little. What is the best action?
Select an answer first
17application · medium
You run kubectl top nodes and see that one node shows 85% CPU usage while others are below 30%. What does this indicate?
Select an answer first
18application · easy
You run kubectl top pods and see a pod using 500m CPU and 256Mi memory. The pod has a CPU limit of 1000m and memory limit of 512Mi. What can you conclude?
Select an answer first
19foundation · easy
In the output of kubectl top nodes, what does the '%CPU' column represent?
Select an answer first
20expert · hard
A pod is repeatedly being OOM-killed. You need to determine if it's due to a memory leak or insufficient limits. What is the best approach?
Select an answer first

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