This CKA practice question tests your understanding of troubleshooting. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A node in your cluster is reporting a DiskPressure condition. Which kubectl command would you use to get details about the node's condition?
kubectl get nodes
Why wrong: This only lists nodes and high-level status, not detailed conditions.
kubectl logs <node-name>
Why wrong: Logs are for pods, not nodes.
kubectl get events --field-selector involvedObject.kind=Node
Why wrong: Events may show node issues but the describe command is more comprehensive for conditions.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
kubectl describe node <node-name>
The `kubectl describe node <node-name>` command provides detailed information about a node, including its status, capacity, allocatable resources, and a list of conditions (e.g., DiskPressure, MemoryPressure, PIDPressure, Ready). This is the standard way to inspect the exact reason and timestamps for a DiskPressure condition, as well as related metrics like disk usage and inode consumption.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
kubectl get nodes
Why it's wrong here
This only lists nodes and high-level status, not detailed conditions.
kubectl logs <node-name>
Why it's wrong here
Logs are for pods, not nodes.
kubectl get events --field-selector involvedObject.kind=Node
Why it's wrong here
Events may show node issues but the describe command is more comprehensive for conditions.
Option-by-option analysis
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The CKA exam frequently reuses these exact scenarios with slightly different constraints.
Why this is wrong here
This only lists nodes and high-level status, not detailed conditions.
Why this is wrong here
Logs are for pods, not nodes.
Why this is wrong here
Events may show node issues but the describe command is more comprehensive for conditions.
Analysis generated from the official CKAblueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
CNCF often tests the distinction between high-level status commands (`kubectl get nodes`) and detailed diagnostic commands (`kubectl describe node`), trapping candidates who think a simple status list is sufficient to investigate a specific condition like DiskPressure.
Trap categories for this question
Command / output trap
Events may show node issues but the describe command is more comprehensive for conditions.
Detailed technical explanation
The DiskPressure condition is triggered by the kubelet's eviction manager when the node's local disk usage (e.g., on `/var/lib/kubelet` or the root filesystem) exceeds the `eviction-hard` or `eviction-soft` thresholds defined in the kubelet configuration. Under the hood, the kubelet periodically checks disk space and inode usage; when DiskPressure is true, the node may start evicting pods to free resources. The `kubectl describe node` output includes the `Conditions:` section with `LastHeartbeatTime`, `LastTransitionTime`, and `Message` fields that reveal which specific threshold was breached (e.g., `nodefs.available.percent`).
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the CKA exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Troubleshooting — This question tests Troubleshooting — Read the scenario before looking for a memorised answer..
The correct answer is: kubectl describe node <node-name> — The `kubectl describe node <node-name>` command provides detailed information about a node, including its status, capacity, allocatable resources, and a list of conditions (e.g., DiskPressure, MemoryPressure, PIDPressure, Ready). This is the standard way to inspect the exact reason and timestamps for a DiskPressure condition, as well as related metrics like disk usage and inode consumption.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 30, 2026
This CKA practice question is part of Courseiva's free CNCF certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the CKA exam.
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