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 pod is in CrashLoopBackOff state. Which command shows the last termination reason?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "which command"
Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
kubectl logs <pod>
Why wrong: Shows current logs, not termination reason.
kubectl get pod <pod> -o yaml
Why wrong: Shows state but not human-readable termination reason.
kubectl top pod <pod>
Why wrong: Shows resource usage, not status.
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 pod <pod>
The `kubectl describe pod <pod>` command displays detailed information about the pod, including the container state transitions and the last termination reason in the `Last State` field under the container status. This is the correct way to see why the container previously exited, which is essential for diagnosing a CrashLoopBackOff.
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 logs <pod>
Why it's wrong here
Shows current logs, not termination reason.
kubectl get pod <pod> -o yaml
Why it's wrong here
Shows state but not human-readable termination reason.
kubectl top pod <pod>
Why it's wrong here
Shows resource usage, not status.
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
Shows current logs, not termination reason.
Why this is wrong here
Shows state but not human-readable termination reason.
Why this is wrong here
Shows resource usage, not status.
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
The trap here is that candidates often reach for `kubectl logs` first, not realizing that in a CrashLoopBackOff the container may have already restarted, so the logs from the last crash are not visible without the `--previous` flag, whereas `kubectl describe pod` directly shows the last termination reason.
Trap categories for this question
Command / output trap
Shows current logs, not termination reason.
Detailed technical explanation
Under the hood, the `Last State` in `kubectl describe pod` comes from the container status in the pod's status field, which records the exit code, reason (e.g., `Error`, `OOMKilled`), and message from the previous container run. The CrashLoopBackOff state is managed by the kubelet's backoff mechanism, which increases the restart delay exponentially (starting at 10s, doubling up to 5 minutes) after each crash; the last termination reason is critical to determine if the crash is due to an application error, resource limits, or a failed liveness probe.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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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 pod <pod> — The `kubectl describe pod <pod>` command displays detailed information about the pod, including the container state transitions and the last termination reason in the `Last State` field under the container status. This is the correct way to see why the container previously exited, which is essential for diagnosing a CrashLoopBackOff.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 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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