- A
The autoscaler's cooldown period is set too short
Why wrong: A short cooldown would cause more aggressive scaling, not lack of scaling.
- B
The health check is failing on the instances
Why wrong: A failing health check would cause the MIG to recreate instances, not affect scaling based on CPU.
- C
The maximum number of instances is already reached
Why wrong: The question implies scaling is not happening, not that it's capped.
- D
The autoscaler's cooldown period is set too long
A long cooldown delays scaling decisions.
Question 254 of 1,000
Google ACE Deploying and Implementing a Cloud Solution Practice Question
This ACE practice question tests your understanding of deploying and implementing a cloud solution. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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 company has a managed instance group (MIG) with an autoscaler based on CPU utilization. The MIG is not scaling up even though CPU utilization is consistently above 80%. The instances are running a batch processing workload that takes several minutes to finish. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
✓
The autoscaler's cooldown period is set too long
If the cooldown period is too long, the autoscaler may wait unnecessarily before scaling up. Also, the application may take time to show increased CPU. However, the typical cause is the autoscaler's cooldown period preventing rapid scale-up.
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.
- ✗
The autoscaler's cooldown period is set too short
Why it's wrong here
A short cooldown would cause more aggressive scaling, not lack of scaling.
- ✗
The health check is failing on the instances
Why it's wrong here
A failing health check would cause the MIG to recreate instances, not affect scaling based on CPU.
- ✗
The maximum number of instances is already reached
Why it's wrong here
The question implies scaling is not happening, not that it's capped.
- ✓
The autoscaler's cooldown period is set too long
Why this is correct
A long cooldown delays scaling decisions.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
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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Deploying and Implementing a Cloud Solution — study guide chapter
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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: The autoscaler's cooldown period is set too long — If the cooldown period is too long, the autoscaler may wait unnecessarily before scaling up. Also, the application may take time to show increased CPU. However, the typical cause is the autoscaler's cooldown period preventing rapid scale-up.
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.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 →
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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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