- A
Grant the roles/storage.admin role at the bucket level.
Why wrong: Storage.admin is too permissive; Storage Object Viewer is appropriate for read-only access.
- B
Grant the roles/storage.objectViewer role at the project level to the service account.
Why wrong: Project-level grant would allow access to all buckets.
- C
Use the default Compute Engine service account.
Why wrong: The default service account likely has broader permissions or requires modification.
- D
Attach the service account to the Compute Engine instance at creation.
Attaching the service account enables the instance to use its permissions.
- E
Create a custom service account.
A custom service account allows fine-grained permission assignment.
Question 935 of 1,000
Google ACE Configuring Access and Security Practice Question
This ACE practice question tests your understanding of configuring access and security. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 wants to ensure that a Compute Engine instance can access only a specific Cloud Storage bucket and no other resources in the project. Which TWO steps should the engineer take? (Select 2 correct answers)
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
✓
Attach the service account to the Compute Engine instance at creation.
To restrict an instance to a specific bucket, create a custom service account with the Storage Object Viewer role only on that bucket (via IAM binding on the bucket), then attach that service account to the instance. Granting role at project level is too broad. Using the default service account gives broader permissions.
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.
- ✗
Grant the roles/storage.admin role at the bucket level.
Why it's wrong here
Storage.admin is too permissive; Storage Object Viewer is appropriate for read-only access.
- ✗
Grant the roles/storage.objectViewer role at the project level to the service account.
Why it's wrong here
Project-level grant would allow access to all buckets.
- ✗
Use the default Compute Engine service account.
Why it's wrong here
The default service account likely has broader permissions or requires modification.
- ✓
Attach the service account to the Compute Engine instance at creation.
Why this is correct
Attaching the service account enables the instance to use its permissions.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Create a custom service account.
Why this is correct
A custom service account allows fine-grained permission assignment.
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
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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.
- →
Configuring Access and Security — study guide chapter
Learn the concepts, then practise the questions
- →
Configuring Access and Security practice questions
Targeted practice on this topic area only
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FAQ
Questions learners often ask
What does this ACE question test?
Configuring Access and Security — This question tests Configuring Access and Security — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Attach the service account to the Compute Engine instance at creation. — To restrict an instance to a specific bucket, create a custom service account with the Storage Object Viewer role only on that bucket (via IAM binding on the bucket), then attach that service account to the instance. Granting role at project level is too broad. Using the default service account gives broader permissions.
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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