- A
Condition: { StringEquals: { 'aws:SourceVpc': 'vpc-12345' } }
Why wrong: 'aws:SourceVpc' restricts to the entire VPC, not a specific endpoint.
- B
Condition: { StringEquals: { 'ec2:Vpc': 'vpc-12345' } }
Why wrong: 'ec2:Vpc' is for EC2, not S3.
- C
Condition: { IpAddress: { 'aws:VpcSourceIp': '10.0.0.0/16' } }
Why wrong: 'aws:VpcSourceIp' is not a valid condition key.
- D
Condition: { StringEquals: { 'aws:SourceVpce': 'vpce-12345' } }
'aws:SourceVpce' restricts to a specific VPC endpoint.
Question 388 of 1,546
Restrict S3 Bucket Access to a Specific VPC Endpoint
This SOA-C02 practice question tests your understanding of security and compliance. 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. A key principle to apply: aws:SourceVpce. 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 SysOps administrator needs to restrict access to an Amazon S3 bucket so that only requests from a specific VPC endpoint are allowed. Which policy statement should be added 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
✓
Condition: { StringEquals: { 'aws:SourceVpce': 'vpce-12345' } }
Option D is correct because the condition key 'aws:SourceVpce' is used to restrict access to requests originating from a specific VPC endpoint (identified by its endpoint ID). Option A uses 'aws:SourceVpc', which restricts to an entire VPC, not a specific endpoint. Option B uses 'ec2:Vpc', which is not a valid condition key for S3 bucket policies. Option C uses 'aws:VpcSourceIp', which is not a valid condition key; the correct key for IP-based restrictions is 'aws:SourceIp'.
Key principle: aws:SourceVpce
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Condition: { StringEquals: { 'aws:SourceVpc': 'vpc-12345' } }
Why it's wrong here
'aws:SourceVpc' restricts to the entire VPC, not a specific endpoint.
- ✗
Condition: { StringEquals: { 'ec2:Vpc': 'vpc-12345' } }
Why it's wrong here
'ec2:Vpc' is for EC2, not S3.
- ✗
Condition: { IpAddress: { 'aws:VpcSourceIp': '10.0.0.0/16' } }
Why it's wrong here
'aws:VpcSourceIp' is not a valid condition key.
- ✓
Condition: { StringEquals: { 'aws:SourceVpce': 'vpce-12345' } }
Why this is correct
'aws:SourceVpce' restricts to a specific VPC endpoint.
Related concept
aws:SourceVpce
Common exam traps
Common exam trap: answer the scenario, not the keyword
A common trap is confusing 'aws:SourceVpc' with 'aws:SourceVpce'. The former restricts to traffic from any resource in the specified VPC, while the latter restricts to traffic specifically from the VPC endpoint.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- aws:SourceVpce
- VPC Endpoint
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
aws:SourceVpce
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.
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.
Review aws:SourceVpce, then practise related SOA-C02 questions on the same topic to reinforce the concept.
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Security and Compliance — study guide chapter
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FAQ
Questions learners often ask
What does this SOA-C02 question test?
Security and Compliance — This question tests Security and Compliance — aws:SourceVpce.
What is the correct answer to this question?
The correct answer is: Condition: { StringEquals: { 'aws:SourceVpce': 'vpce-12345' } } — Option D is correct because the condition key 'aws:SourceVpce' is used to restrict access to requests originating from a specific VPC endpoint (identified by its endpoint ID). Option A uses 'aws:SourceVpc', which restricts to an entire VPC, not a specific endpoint. Option B uses 'ec2:Vpc', which is not a valid condition key for S3 bucket policies. Option C uses 'aws:VpcSourceIp', which is not a valid condition key; the correct key for IP-based restrictions is 'aws:SourceIp'.
What should I do if I get this SOA-C02 question wrong?
Review aws:SourceVpce, then practise related SOA-C02 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
aws:SourceVpce
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Last reviewed: Jun 20, 2026
This SOA-C02 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 SOA-C02 exam.
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