← ACE·Google Cloud

Question 100 of 500

Configuring access and security →mediumMultiple ChoiceObjective-mapped

Quick Answer

The correct answer is to remove the `allUsers` binding immediately because granting `storage.objectViewer` to `allUsers` makes every object in the bucket publicly readable by anyone on the internet, including anonymous users, which directly exposes internal documentation to unauthorized access. This violates the core security principle of least privilege, as the `allUsers` principal represents any unauthenticated entity, turning the bucket into a public repository regardless of the bucket’s own access controls. On the Google Associate Cloud Engineer exam, this scenario tests your understanding of IAM inheritance and the critical distinction between `allUsers` (anyone on the web) and `allAuthenticatedUsers` (any authenticated Google account). A common trap is confusing these two principals or assuming bucket-level ACLs override IAM—they do not; IAM is authoritative. The immediate fix is to remove the binding and replace it with specific, authenticated identities like service accounts or Google Groups. Memory tip: “allUsers = all the world; allAuthenticatedUsers = all the Google accounts.”

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.

You are reviewing a GCP project's IAM policy and find that the `allUsers` principal has `storage.objectViewer` on a Cloud Storage bucket. The bucket contains internal documentation. What are the security implications, and what should you do?

Question 1mediummultiple choice

Full question →

A
This is acceptable if the bucket has Uniform Bucket-Level Access enabled; UBLA encrypts the data.
Why wrong: UBLA controls how permissions are evaluated (bucket-level vs object-level ACLs) but does not encrypt data differently or prevent public access. allUsers with UBLA still means public access.
B
Any person on the internet can read the internal documents; remove the `allUsers` binding immediately and restrict access to authorized identities.
allUsers grants unauthenticated public access. Internal documentation should never be public. Removing the binding and enabling Public Access Prevention prevents re-introduction of this misconfiguration.
C
This is a read-only permission so it's acceptable — attackers can't modify the documents.
Why wrong: Read access to internal documentation is a serious data leak regardless of write access. Confidential information can be exfiltrated with read-only access.
D
Enable Cloud Armor on the bucket to restrict access to your corporate IP range.
Why wrong: Cloud Armor cannot be attached to Cloud Storage buckets directly. Access control is managed through IAM bindings, not Cloud Armor.

Full breakdown with real-world context →

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

✓

Any person on the internet can read the internal documents; remove the `allUsers` binding immediately and restrict access to authorized identities.

Option B is correct because granting `storage.objectViewer` to `allUsers` makes the bucket's objects publicly readable by anyone on the internet, including anonymous users. This violates the principle of least privilege and exposes internal documentation to unauthorized access. The immediate remediation is to remove the `allUsers` binding and replace it with specific, authenticated identities (e.g., service accounts or Google Groups) that require access.

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.

✗
This is acceptable if the bucket has Uniform Bucket-Level Access enabled; UBLA encrypts the data.
Why it's wrong here
UBLA controls how permissions are evaluated (bucket-level vs object-level ACLs) but does not encrypt data differently or prevent public access. allUsers with UBLA still means public access.
✓
Any person on the internet can read the internal documents; remove the `allUsers` binding immediately and restrict access to authorized identities.
Why this is correct
allUsers grants unauthenticated public access. Internal documentation should never be public. Removing the binding and enabling Public Access Prevention prevents re-introduction of this misconfiguration.
Related concept
Read the scenario before looking for a memorised answer.
✗
This is a read-only permission so it's acceptable — attackers can't modify the documents.
Why it's wrong here
Read access to internal documentation is a serious data leak regardless of write access. Confidential information can be exfiltrated with read-only access.
✗
Enable Cloud Armor on the bucket to restrict access to your corporate IP range.
Why it's wrong here
Cloud Armor cannot be attached to Cloud Storage buckets directly. Access control is managed through IAM bindings, not Cloud Armor.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates might think read-only permissions are safe or that UBLA automatically secures a bucket, but Cisco tests that `allUsers` with any IAM role (even read-only) on a bucket containing sensitive data is a critical security risk that must be removed immediately.

Detailed technical explanation

How to think about this question

Under the hood, `allUsers` represents any unauthenticated user on the internet, and `storage.objectViewer` grants the `storage.objects.get` and `storage.objects.list` permissions. Even with Uniform Bucket-Level Access enabled, IAM bindings for `allUsers` still allow public access because UBLA only disables legacy ACLs, not IAM. In a real-world scenario, a misconfigured bucket like this could lead to data leaks, as seen in the 2019 Capital One breach where a public S3 bucket exposed sensitive data.

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.

TExam Day Tips

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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

Related ACE practice-question pages

Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.

Setting up a cloud solution environment practice questions

Practise ACE questions linked to Setting up a cloud solution environment.

Planning and configuring a cloud solution practice questions

Practise ACE questions linked to Planning and configuring a cloud solution.

Deploying and implementing a cloud solution practice questions

Practise ACE questions linked to Deploying and implementing a cloud solution.

Ensuring successful operation of a cloud solution practice questions

Practise ACE questions linked to Ensuring successful operation of a cloud solution.

Configuring access and security practice questions

Practise ACE questions linked to Configuring access and security.

ACE fundamentals practice questions

Practise ACE questions linked to ACE fundamentals.

ACE scenario practice questions

Practise ACE questions linked to ACE scenario.

ACE troubleshooting practice questions

Practise ACE questions linked to ACE troubleshooting.

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.

10 questions 20 questions 30 questions 50 questions Timed 30

ACE practice-test guide →Study guide →Browse all practice tests

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: Any person on the internet can read the internal documents; remove the `allUsers` binding immediately and restrict access to authorized identities. — Option B is correct because granting `storage.objectViewer` to `allUsers` makes the bucket's objects publicly readable by anyone on the internet, including anonymous users. This violates the principle of least privilege and exposes internal documentation to unauthorized access. The immediate remediation is to remove the `allUsers` binding and replace it with specific, authenticated identities (e.g., service accounts or Google Groups) that require access.

What should I do if I get this ACE question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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 →

How Courseiva writes practice questions · Editorial policy

Keep practising

Question Discussion

Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.

Loading comments…

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.