Question 1mediummultiple choice
Full question →Question 287 of 300
mediummultiple choiceObjective-mapped
ACE Practice Question: Your GKE cluster nodes are running an older…
This ACE practice question tests your understanding of your gke cluster nodes are running an older…. 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.
Your GKE cluster nodes are running an older kernel version with a known vulnerability. You need to update all nodes to use the latest node image with the patched kernel without any downtime. The cluster has a Surge Upgrade configuration of `max-surge: 1, max-unavailable: 0`. What happens during the node upgrade?
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
GKE provisions one new node, drains one old node, deletes it, and repeats — zero downtime.
max-surge: 1 provisions one extra node. max-unavailable: 0 ensures old nodes are drained (pods rescheduled) before removal. The process repeats node by node with no pod disruption.
B
Distractor review
GKE terminates all nodes simultaneously and creates new ones — brief downtime occurs.
max-unavailable: 0 prevents any node from being taken offline before a replacement is ready. Simultaneous termination would only occur with max-unavailable set to the full node count.
C
Distractor review
GKE upgrades nodes in-place by applying a kernel patch without rescheduling pods.
GKE does not patch nodes in-place. Node upgrades replace nodes with new images — pods are rescheduled to the replacement nodes.
D
Distractor review
Two nodes are upgraded simultaneously (one being the surge node and one old node going offline).
max-surge: 1 adds one node. max-unavailable: 0 means zero old nodes go offline until the surge node is ready to receive pods. It's a sequential one-at-a-time replacement, not simultaneous.
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.
Related practice questions
Related ACE practice-question pages
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.
Question 1
What is the correct order of the Google Cloud resource hierarchy from highest to lowest level?
Question 2
A compliance archive stores legal documents accessed at most once per quarter. Which Cloud Storage class minimizes storage cost while meeting that access pattern?
Question 3
Which gcloud command creates a Compute Engine VM named 'web-01' using the e2-medium machine type in zone us-central1-a?
Question 4
A team wants to receive an email alert when the average CPU utilization of VMs in a managed instance group exceeds 80% for more than 5 minutes. What should they create in Cloud Monitoring?
Question 5
A junior developer needs read-only access to all GCP resources in a project. Which IAM role grants the minimum permissions required?
Question 6
A startup creates its first Google Cloud project. Before deploying any paid resources, what must be linked to the project?
Practice this exam
Start a free ACE practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
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: GKE provisions one new node, drains one old node, deletes it, and repeats — zero downtime. — With `max-surge: 1, max-unavailable: 0`, GKE's surge upgrade provisions one new node (with the updated image/kernel) before taking any old node offline. When the new node is ready, one old node is cordoned, its pods are drained (rescheduled to the new node and others), and then the old node is deleted. This repeats until all nodes are updated. Since `max-unavailable: 0`, no pods are disrupted — they are moved before any node goes down. Zero downtime is achieved.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Discussion
Loading comments…
Sign in to join the discussion.
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.