Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A solutions architect is designing an S3 bucket for a claims portal. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
Enable S3 Block Public Access at the account or bucket level
S3 Block Public Access prevents public ACLs and public bucket policies from exposing the bucket.
B
Distractor review
Create an IAM policy that denies s3:GetObject to anonymous users
An IAM policy alone does not protect against every public ACL or bucket policy mistake.
C
Distractor review
Enable server access logging on the bucket
Access logging records requests but does not prevent public exposure.
D
Distractor review
Enable S3 Transfer Acceleration
Transfer Acceleration improves upload performance but does not enforce private access.
Common exam trap
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.
Technical deep dive
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.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A team needs to distribute TCP traffic (not HTTP) across multiple services. The services must see the original client source IP for auditing. Which AWS load balancer is the best fit?
Question 2
A team wants to run containerized services with AWS-managed orchestration and autoscaling. They do NOT require Kubernetes compatibility. Which AWS service choice is most appropriate to meet these goals?
Question 3
A solutions architect is designing an S3 bucket for a IoT ingestion API. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure? The design must avoid adding custom operational scripts.
Question 4
A team wants to delegate IAM management to developers, but must ensure developers can never grant themselves permissions beyond a specific limit. Which AWS mechanism best matches this requirement?
Question 5
A solutions architect is designing an S3 bucket for a healthcare document service. The objects must never be publicly accessible, even if a developer later adds an overly broad bucket policy. What should the architect configure?
Question 6
A team wants to remove a bastion host used for administrative access to EC2 instances in private subnets. The instances should be reachable only for occasional troubleshooting by engineers who authenticate with AWS SSO. What is the best secure alternative within AWS, assuming the instances already have an instance profile attached?
FAQ
Questions learners often ask
What does this SAA-C03 question test?
Standard ACLs match source addresses.
What is the correct answer to this question?
The correct answer is: Enable S3 Block Public Access at the account or bucket level — S3 Block Public Access is the guardrail that directly prevents accidental public exposure caused by ACLs or bucket policies.
What should I do if I get this SAA-C03 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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