PCSE Practice Question: Managing operations in a cloud solution environment
This PCSE practice question tests your understanding of managing operations in a cloud solution environment. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 security engineer is reviewing the IAM policy of a Cloud Storage bucket that contains sensitive data. The exhibit shows the current policy. A developer reports that they can read objects in the bucket using service account sa-2, but they cannot delete objects. What is the most likely reason?
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.
The service account sa-2 has roles/storage.objectAdmin, which includes delete permissions, but there might be a condition or organization policy preventing deletion
objectAdmin includes delete, so the issue is likely an additional constraint.
C
The bucket has uniform bucket-level access disabled, so ACLs override IAM
Why wrong: Uniform bucket-level access is not mentioned; even if disabled, ACLs might grant additional permissions.
D
The service account sa-2 actually has roles/storage.objectViewer, not objectAdmin
Why wrong: The exhibit clearly shows objectAdmin for sa-2.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The service account sa-2 has roles/storage.objectAdmin, which includes delete permissions, but there might be a condition or organization policy preventing deletion
Option B is correct because the IAM policy shows that service account sa-2 has the roles/storage.objectAdmin role, which includes the storage.objects.delete permission. However, the presence of a condition or an organization policy (such as a VPC Service Controls perimeter or a boolean constraint) can override this permission, preventing deletion even though the role is assigned. The developer can read objects (permitted by the role) but cannot delete them, indicating that a higher-level policy is blocking the delete action.
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.
✗
There is an explicit deny on the bucket for sa-2
Why it's wrong here
No deny is shown in the policy.
✓
The service account sa-2 has roles/storage.objectAdmin, which includes delete permissions, but there might be a condition or organization policy preventing deletion
Why this is correct
objectAdmin includes delete, so the issue is likely an additional constraint.
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.
✗
The bucket has uniform bucket-level access disabled, so ACLs override IAM
Why it's wrong here
Uniform bucket-level access is not mentioned; even if disabled, ACLs might grant additional permissions.
✗
The service account sa-2 actually has roles/storage.objectViewer, not objectAdmin
Why it's wrong here
The exhibit clearly shows objectAdmin for sa-2.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Google Cloud often tests the misconception that a role with delete permissions always allows deletion, ignoring that IAM conditions or organization policies can override the permission, leading candidates to incorrectly choose a role mismatch or ACL override.
Trap categories for this question
Command / output trap
No deny is shown in the policy.
Detailed technical explanation
How to think about this question
Under the hood, Cloud Storage IAM permissions are evaluated with a hierarchy: organization policies (e.g., constraints/storage.retentionPolicy) and IAM conditions (e.g., resource.name.startsWith) are evaluated after role assignment. A condition on the role binding, such as requiring a specific IP range or resource tag, can deny the delete action while allowing read. Additionally, organization policies like 'Disable service account key creation' do not affect this, but a VPC Service Controls perimeter can block delete operations on buckets outside the perimeter, even if IAM allows it.
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.
Managing operations in a cloud solution environment — This question tests Managing operations in a cloud solution environment — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The service account sa-2 has roles/storage.objectAdmin, which includes delete permissions, but there might be a condition or organization policy preventing deletion — Option B is correct because the IAM policy shows that service account sa-2 has the roles/storage.objectAdmin role, which includes the storage.objects.delete permission. However, the presence of a condition or an organization policy (such as a VPC Service Controls perimeter or a boolean constraint) can override this permission, preventing deletion even though the role is assigned. The developer can read objects (permitted by the role) but cannot delete them, indicating that a higher-level policy is blocking the delete action.
What should I do if I get this PCSE question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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.
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Question Discussion
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