CPENT Cloud And Hybrid Infrastructure Security Practice Question
An AWS administrator wants to prevent users from accidentally creating public Amazon S3 buckets across the entire AWS account. Which specific AWS feature should be enabled?
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
✓
S3 Block Public Access at the AWS account level.
S3 Block Public Access at the account level blocks the creation of public buckets and modification of public policies organization-wide.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS Web Application Firewall rules attached to the S3 global endpoint.
Why it's wrong here
WAF attaches to CloudFront or ALBs, not directly to S3 bucket creation controls.
- ✗
AWS Organizations Service Control Policies blocking the s3:PutBucketAcl action.
Why it's wrong here
While SCPs can block actions, S3 Block Public Access is the dedicated native control.
- ✗
Amazon Macie to automatically encrypt all public buckets.
Why it's wrong here
Macie discovers sensitive data; it does not block public access.
- ✓
S3 Block Public Access at the AWS account level.
Why this is correct
Account-level S3 Block Public Access prevents public exposure globally.
Quick reference
AWS S3 Storage Class Comparison
| Storage Class | Min Duration | Retrieval | Use Case |
|---|---|---|---|
| S3 Standard | None | Immediate | Frequently accessed data |
| S3 Standard-IA | 30 days | Immediate | Infrequent access, rapid retrieval |
| S3 One Zone-IA | 30 days | Immediate | Non-critical infrequent data |
| S3 Intelligent-Tiering | None | Immediate–hours | Unknown or changing access patterns |
| S3 Glacier Instant | 90 days | Milliseconds | Archive with instant retrieval |
| S3 Glacier Flexible | 90 days | Minutes–hours | Archive, flexible retrieval |
| S3 Glacier Deep Archive | 180 days | Hours | Long-term compliance archive |
About these practice questions
One of 274 original CPENT practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official EC-Council exam blueprint
This CPENT practice question is part of Courseiva's free EC-Council 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 CPENT exam.