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ACE Practice Question: A GKE pod's container is frequently crashing and…
This ACE practice question tests your understanding of a gke pod's container is frequently crashing and…. 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 GKE pod's container is frequently crashing and restarting. You need to view the logs from the previous container instance (before the last crash) to diagnose the crash cause. Which command retrieves these logs?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
`kubectl logs POD_NAME --previous`
--previous retrieves logs from the terminated previous container instance — exactly what's needed to see what happened before the crash.
B
Distractor review
`kubectl describe pod POD_NAME`
kubectl describe shows events, state transitions, and resource info, but not the full container log output from before the crash.
C
Distractor review
`kubectl get events --field-selector reason=OOMKilled`
kubectl get events can show OOMKill events but doesn't provide the container's log output needed for full crash diagnosis.
D
Distractor review
`kubectl logs POD_NAME`
Without --previous, this shows logs from the current (restarted) container, which may be empty or show post-restart activity only.
Common exam trap
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Technical deep dive
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
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FAQ
Questions learners often ask
What does this ACE question test?
Static NAT maps one inside address to one outside address.
What is the correct answer to this question?
The correct answer is: `kubectl logs POD_NAME --previous` — `kubectl logs POD_NAME --previous` retrieves logs from the previous container instance in the pod (the one that terminated/crashed). Without `--previous`, kubectl logs shows logs from the currently running container. This flag is essential for diagnosing crash causes since the current container may have restarted with empty logs.
What should I do if I get this ACE question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related ACE NAT questions on configuration and troubleshooting.
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This ACE practice question is part of Courseiva's free Google Cloud 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 ACE exam.