- A
A condition that matches aws:sourceVpce to the endpoint ID
The aws:sourceVpce condition restricts S3 access to requests that arrive through the specified VPC endpoint.
- B
A deny statement for all IAM users except the EC2 role
Why wrong: This controls identity but does not enforce the network path through the endpoint.
- C
A security group rule that allows HTTPS to S3
Why wrong: Security groups do not attach to S3 buckets and cannot enforce S3 bucket access.
- D
A condition that matches aws:RequestedRegion to the bucket Region
Why wrong: RequestedRegion limits API calls by Region but does not prove traffic used the endpoint.
Question 1,000 of 1,040
SAA-C03 Design Secure Architectures Practice Question
This SAA-C03 practice question tests your understanding of design secure architectures. 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 EC2 instance in a private subnet must access an S3 bucket that contains regulated exports for a image sharing application. The security team requires access to be allowed only when traffic comes through a specific VPC endpoint. What should the architect add to the bucket policy?
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
✓
A condition that matches aws:sourceVpce to the endpoint ID
Option A is correct because the `aws:sourceVpce` condition key in an S3 bucket policy allows you to restrict access so that only traffic originating from a specific VPC endpoint (VPCe) is permitted. This enforces the security team's requirement that all S3 access must come through that endpoint, ensuring that requests from other paths (e.g., NAT gateway, internet gateway) are denied. The condition is evaluated at the S3 service side, not at the instance level, making it a direct and secure way to enforce the policy.
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.
- ✓
A condition that matches aws:sourceVpce to the endpoint ID
Why this is correct
The aws:sourceVpce condition restricts S3 access to requests that arrive through the specified VPC endpoint.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
A deny statement for all IAM users except the EC2 role
Why it's wrong here
This controls identity but does not enforce the network path through the endpoint.
- ✗
A security group rule that allows HTTPS to S3
Why it's wrong here
Security groups do not attach to S3 buckets and cannot enforce S3 bucket access.
- ✗
A condition that matches aws:RequestedRegion to the bucket Region
Why it's wrong here
RequestedRegion limits API calls by Region but does not prove traffic used the endpoint.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse `aws:sourceVpce` with `aws:SourceVpc` (which matches the VPC ID, not the endpoint ID) or incorrectly think a security group rule can enforce endpoint-specific routing, but security groups cannot control the network path taken by traffic.
Detailed technical explanation
How to think about this question
The `aws:sourceVpce` condition key works by matching the VPC endpoint ID (e.g., `vpce-1a2b3c4d`) that the request originates from, which is only present when the request is routed through a Gateway VPC Endpoint or Interface VPC Endpoint. Under the hood, S3 uses the source VPC endpoint ID from the request metadata, and the bucket policy evaluates this condition before granting access. A real-world scenario is when regulated data must not traverse the public internet; using `aws:sourceVpce` ensures that even if an instance has internet access, only requests through the designated endpoint are allowed, providing a network-level security boundary.
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.
Visual reference
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 |
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.
- →
Design Secure Architectures — study guide chapter
Learn the concepts, then practise the questions
- →
Design Secure Architectures practice questions
Targeted practice on this topic area only
- →
All SAA-C03 questions
1,040 questions across all exam domains
- →
SAA-C03 study guide
Full concept coverage aligned to exam objectives
- →
SAA-C03 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related SAA-C03 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Design Secure Architectures practice questions
Practise SAA-C03 questions linked to Design Secure Architectures.
Design Resilient Architectures practice questions
Practise SAA-C03 questions linked to Design Resilient Architectures.
Design High-Performing Architectures practice questions
Practise SAA-C03 questions linked to Design High-Performing Architectures.
Design Cost-Optimized Architectures practice questions
Practise SAA-C03 questions linked to Design Cost-Optimized Architectures.
SAA-C03 VPC practice questions
Practise SAA-C03 questions linked to SAA-C03 VPC.
SAA-C03 S3 lifecycle policy questions
Practise SAA-C03 questions linked to SAA-C03 S3 lifecycle policy questions.
SAA-C03 RDS Multi-AZ questions
Practise SAA-C03 questions linked to SAA-C03 RDS Multi-AZ questions.
SAA-C03 IAM policy practice questions
Practise SAA-C03 questions linked to SAA-C03 IAM policy.
SAA-C03 Route 53 failover questions
Practise SAA-C03 questions linked to SAA-C03 Route 53 failover questions.
SAA-C03 CloudFront practice questions
Practise SAA-C03 questions linked to SAA-C03 CloudFront.
SAA-C03 NAT gateway questions
Practise SAA-C03 questions linked to SAA-C03 NAT gateway questions.
SAA-C03 VPC endpoint questions
Practise SAA-C03 questions linked to SAA-C03 VPC endpoint questions.
Practice this exam
Start a free SAA-C03 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this SAA-C03 question test?
Design Secure Architectures — This question tests Design Secure Architectures — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: A condition that matches aws:sourceVpce to the endpoint ID — Option A is correct because the `aws:sourceVpce` condition key in an S3 bucket policy allows you to restrict access so that only traffic originating from a specific VPC endpoint (VPCe) is permitted. This enforces the security team's requirement that all S3 access must come through that endpoint, ensuring that requests from other paths (e.g., NAT gateway, internet gateway) are denied. The condition is evaluated at the S3 service side, not at the instance level, making it a direct and secure way to enforce the policy.
What should I do if I get this SAA-C03 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
More SAA-C03 practice questions
- A content publishing system uses Lambda functions that call an unreliable third-party API. Failed events must be retaine…
- A startup runs two EC2-based workloads in the same AWS Region. Its customer-facing API is always on, and its nightly vid…
- A warehouse integration service must use shared file storage across Linux EC2 instances in multiple Availability Zones.…
- A team runs a stateless web app on Amazon EC2 behind an Application Load Balancer. During traffic spikes, new EC2 instan…
- A service in private subnets downloads product images from Amazon S3 and stores job state in DynamoDB. A NAT Gateway is…
- A static site is hosted in Amazon S3 and delivered by CloudFront. After a frontend release, the same JavaScript bundles…
Last reviewed: Jun 11, 2026
This SAA-C03 practice question is part of Courseiva's free Amazon Web Services 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 SAA-C03 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.