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ACE Practice Question: A team's Cloud Storage bucket containing backups…
This ACE practice question tests your understanding of a team's cloud storage bucket containing backups…. 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 team's Cloud Storage bucket containing backups has been accidentally made publicly readable. A monitoring alert fires. What is the fastest way to remove public access?
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
Distractor review
Apply a Cloud Armor policy to Cloud Storage to block external IPs
Cloud Armor applies to HTTP load balancers, not Cloud Storage directly — it cannot be applied to a bucket's public access.
B
Distractor review
Delete the bucket and recreate it with correct permissions
Deleting the bucket destroys all backup data — a drastic and unnecessary action for a permissions change.
C
Best answer
Remove the 'allUsers' IAM binding from the bucket using the Console or gcloud/gsutil
Removing the `allUsers:objectViewer` binding immediately revokes public read access without affecting the data or other users' access.
D
Distractor review
Enable VPC Service Controls around Cloud Storage to block all external access
VPC Service Controls prevent access from outside a defined perimeter — configuring this is much slower and broader than simply removing the public IAM binding.
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?
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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: Remove the 'allUsers' IAM binding from the bucket using the Console or gcloud/gsutil — Removing the `allUsers` and `allAuthenticatedUsers` IAM bindings from the bucket removes public access. Alternatively, enabling 'Uniform bucket-level access' and removing the public policy achieves the same. For speed, `gsutil iam ch -d allUsers:objectViewer gs://[BUCKET]` or using the Console's Permissions tab is fastest.
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.
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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.