- A
Create a MIG without health check; set rolling update with maxSurge=1 and maxUnavailable=0.
Why wrong: No health check means no autohealing; rolling update settings prevent downtime but unhealthy instances are not replaced automatically.
- B
Create a MIG with a health check for autohealing; set rolling update with maxSurge=0 and maxUnavailable=1.
Why wrong: Autohealing is present, but rolling update with maxSurge=0 and maxUnavailable=1 will cause temporary downtime.
- C
Create a MIG with a health check configured for autohealing; set rolling update with maxSurge=1 and maxUnavailable=0.
Autohealing replaces unhealthy instances; rolling update with maxSurge>0 and maxUnavailable=0 ensures no downtime.
- D
Create a MIG without health check; set rolling update with maxSurge=0 and maxUnavailable=1.
Why wrong: No health check means no autohealing; maxUnavailable=1 allows some instances to be unavailable during update.
Google ACE Deploying and Implementing a Cloud Solution Practice Question
This ACE practice question tests your understanding of deploying and implementing a cloud solution. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 team is creating a managed instance group (MIG) for a stateless web application. They need to ensure that instances are automatically replaced if they become unhealthy and that new instances are rolled out gradually with no downtime during updates. Which set of configurations should they use?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Create a MIG with a health check configured for autohealing; set rolling update with maxSurge=1 and maxUnavailable=0.
To replace unhealthy instances, enable autohealing with a health check. For gradual updates with no downtime, use a rolling update with maxSurge set to a positive value (e.g., 1) and maxUnavailable set to 0. Option A correctly specifies both. Option B uses maxUnavailable=1 which allows some downtime. Option C sets maxSurge=0 which prevents new instances from being created before old ones are deleted, causing downtime. Option D omits autohealing.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Create a MIG without health check; set rolling update with maxSurge=1 and maxUnavailable=0.
Why it's wrong here
No health check means no autohealing; rolling update settings prevent downtime but unhealthy instances are not replaced automatically.
- ✗
Create a MIG with a health check for autohealing; set rolling update with maxSurge=0 and maxUnavailable=1.
Why it's wrong here
Autohealing is present, but rolling update with maxSurge=0 and maxUnavailable=1 will cause temporary downtime.
- ✓
Create a MIG with a health check configured for autohealing; set rolling update with maxSurge=1 and maxUnavailable=0.
Why this is correct
Autohealing replaces unhealthy instances; rolling update with maxSurge>0 and maxUnavailable=0 ensures no downtime.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create a MIG without health check; set rolling update with maxSurge=0 and maxUnavailable=1.
Why it's wrong here
No health check means no autohealing; maxUnavailable=1 allows some instances to be unavailable during update.
Common exam traps
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.
Detailed technical explanation
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.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
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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FAQ
Questions learners often ask
What does this ACE question test?
Deploying and Implementing a Cloud Solution — This question tests Deploying and Implementing a Cloud Solution — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a MIG with a health check configured for autohealing; set rolling update with maxSurge=1 and maxUnavailable=0. — To replace unhealthy instances, enable autohealing with a health check. For gradual updates with no downtime, use a rolling update with maxSurge set to a positive value (e.g., 1) and maxUnavailable set to 0. Option A correctly specifies both. Option B uses maxUnavailable=1 which allows some downtime. Option C sets maxSurge=0 which prevents new instances from being created before old ones are deleted, causing downtime. Option D omits autohealing.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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 →
Last reviewed: Jul 4, 2026
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.
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