Google PCA Manage and provision cloud infrastructure Practice Question
This PCA practice question tests your understanding of manage and provision cloud infrastructure. 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.
An organization wants to enforce a policy that prohibits the creation of Cloud Storage buckets with uniform bucket-level access disabled. What should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Organization policy with a list constraint.
Option C is correct: Organization policies can enforce constraints like constraints/storage.uniformBucketLevelAccess. Option A (IAM) does not prevent bucket creation with specific settings. Option B (Cloud Audit Logs) is for logging. Option D (Cloud Armor) is for security policies at the edge.
Key principle: ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Organization policy with a list constraint.
Why this is correct
Organization policies can enforce configuration constraints on resources.
Related concept
Standard ACLs match source addresses.
✗
IAM roles with custom permissions to deny bucket creation.
Why it's wrong here
IAM controls who can create buckets, not how they are configured.
✗
Cloud Audit Logs to monitor bucket creation.
Why it's wrong here
Logging is reactive, not preventive.
✗
Cloud Armor security policies.
Why it's wrong here
Cloud Armor protects against DDoS, not resource configurations.
Common exam traps
Common exam trap: ACLs stop at the first match
ACLs are processed top to bottom. The first matching entry wins, and an implicit deny usually exists at the end.
Detailed technical explanation
How to think about this question
ACL questions test precision: source, destination, protocol, port and direction. A generally correct ACL can still fail if it is applied on the wrong interface or in the wrong direction.
KKey Concepts to Remember
Standard ACLs match source addresses.
Extended ACLs can match source, destination, protocol and ports.
The first matching ACL entry is used.
There is usually an implicit deny at the end.
TExam Day Tips
→Check inbound versus outbound direction.
→Read the ACL from top to bottom.
→Look for a broader permit or deny above the intended line.
Key takeaway
ACLs process entries top to bottom and stop at the first match. Entry order and interface direction matter as much as the permit or deny statement.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this PCA question in full detail.
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related PCA ACL questions on filtering logic and placement.
Manage and provision cloud infrastructure — This question tests Manage and provision cloud infrastructure — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Organization policy with a list constraint. — Option C is correct: Organization policies can enforce constraints like constraints/storage.uniformBucketLevelAccess. Option A (IAM) does not prevent bucket creation with specific settings. Option B (Cloud Audit Logs) is for logging. Option D (Cloud Armor) is for security policies at the edge.
What should I do if I get this PCA question wrong?
Review ACL processing order, placement rules (standard near destination, extended near source), and inbound vs outbound direction. Study wildcard masks and implicit deny. Then practise related PCA ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
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Question Discussion
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