ACE Practice Question: A GKE node pool needs to be upgraded to a new…
This ACE practice question tests your understanding of a gke node pool needs to be upgraded to a new…. 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 node pool needs to be upgraded to a new node version. The cluster has 10 nodes. You need to minimize disruption to running workloads — no more than 2 nodes should be unavailable simultaneously. Which upgrade strategy should you configure?
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.
Distractor review
Configure surge upgrade with `max-surge: 10, max-unavailable: 10`.
max-unavailable: 10 would take all 10 nodes offline simultaneously — catastrophic disruption to workloads.
Distractor review
Enable GKE Auto-upgrade with default settings.
GKE Auto-upgrade uses the cluster's configured surge upgrade settings. If not specifically configured to max-unavailable: 2, the default may allow more nodes to be unavailable.
Best answer
Configure surge upgrade with `max-surge: 0, max-unavailable: 2`.
max-unavailable: 2 limits simultaneous unavailable nodes to 2, meeting the requirement. max-surge: 0 means no extra nodes are provisioned (workloads are rescheduled as nodes drain sequentially in pairs).
Distractor review
Manually cordon and drain 2 nodes, upgrade them, then repeat.
Manual cordon/drain/upgrade works but is operationally intensive and error-prone. Surge upgrade configuration automates this correctly.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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FAQ
Questions learners often ask
What does this ACE question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Configure surge upgrade with `max-surge: 0, max-unavailable: 2`. — GKE node pool upgrades support surge upgrade configuration: `max-surge` controls how many extra nodes are provisioned during upgrade, and `max-unavailable` controls how many existing nodes can be taken offline simultaneously. Setting `max-surge: 2, max-unavailable: 0` means GKE provisions 2 new nodes, drains 2 old nodes, and repeats — no existing pods are disrupted since new nodes replace old ones. Setting `max-unavailable: 2` with `max-surge: 0` allows 2 nodes offline at once without extra capacity.
What should I do if I get this ACE question wrong?
Identify which ACE exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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