- A
IAM policies granting public access to the bucket
Why wrong: IAM public access can still allow listing.
- B
Enable versioning and cross-region replication
Why wrong: Versioning and replication do not control access.
- C
Bucket ACLs set to public and block public access disabled
Why wrong: This would allow public access but also enable listing if ACLs allow.
- D
Block public access to the bucket and use pre-signed URLs for objects
Prevents listing and provides controlled access.
Question 821 of 1,000
CCSP Cloud Data Security Practice Question
This CCSP practice question tests your understanding of cloud data security. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 uses a cloud object storage service to host a public website. The website content is static and needs to be accessible to anyone on the internet, but the company wants to prevent direct listing of the bucket contents. Which combination of access controls should be configured?
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
✓
Block public access to the bucket and use pre-signed URLs for objects
Blocking public access to the bucket while allowing access via signed URLs provides time-limited access to specific objects without exposing the entire bucket.
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.
- ✗
IAM policies granting public access to the bucket
Why it's wrong here
IAM public access can still allow listing.
- ✗
Enable versioning and cross-region replication
Why it's wrong here
Versioning and replication do not control access.
- ✗
Bucket ACLs set to public and block public access disabled
Why it's wrong here
This would allow public access but also enable listing if ACLs allow.
- ✓
Block public access to the bucket and use pre-signed URLs for objects
Why this is correct
Prevents listing and provides controlled access.
Related concept
Standard ACLs match source addresses.
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 security analyst at a medium-sized enterprise encounters this scenario during an investigation or architecture review. The correct answer reflects best practice for the specific threat or control described. 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. Security exam questions test whether you can match controls to threats in context — not just recall definitions.
What to study next
Got this wrong? Here's your next step.
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 CCSP ACL questions on filtering logic and placement.
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FAQ
Questions learners often ask
What does this CCSP question test?
Cloud Data Security — This question tests Cloud Data Security — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: Block public access to the bucket and use pre-signed URLs for objects — Blocking public access to the bucket while allowing access via signed URLs provides time-limited access to specific objects without exposing the entire bucket.
What should I do if I get this CCSP 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 CCSP ACL questions on filtering logic and placement.
What is the key concept behind this question?
Standard ACLs match source addresses.
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Last reviewed: Jul 4, 2026
This CCSP practice question is part of Courseiva's free ISC2 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 CCSP exam.
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