- A
VPC Flow Logs
Why wrong: Flow Logs capture traffic, not enforce policies.
- B
AWS Config rules
Config rules can evaluate whether VPC endpoints exist and trigger remediation.
- C
AWS CloudFormation StackSets
StackSets can deploy VPC endpoints across multiple accounts in an organization.
- D
AWS Service Control Policies (SCPs)
SCPs can restrict actions to enforce VPC endpoint usage.
- E
AWS Transit Gateway
Why wrong: Transit Gateway does not enforce endpoint usage.
Question 1,321 of 1,705
ANS-C01 Network Security, Compliance and Governance Practice Question
This ANS-C01 practice question tests your understanding of network security, compliance and governance. 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.
A company is using AWS Organizations and wants to centrally manage and enforce the use of VPC endpoints for S3 across all accounts. Which THREE services/tools can be combined to achieve this?
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
✓
AWS Config rules
To centrally manage and enforce the use of VPC endpoints for S3 across all accounts in AWS Organizations, you can combine AWS Service Control Policies (SCPs) to allow or deny VPC endpoint creation at the organizational level, AWS CloudFormation StackSets to deploy VPC endpoints consistently across multiple accounts, and AWS Config rules to detect non-compliant resources such as missing VPC endpoints. Option B (AWS Config rules) is correct because it can evaluate compliance and trigger remediation. Option C (AWS CloudFormation StackSets) is correct because it automates deployment of VPC endpoints in target accounts. Option D (AWS SCPs) is correct because it enforces policies on endpoint creation. Option A (VPC Flow Logs) is wrong because it only logs traffic, not enforce policies. Option E (AWS Transit Gateway) is wrong because it provides network connectivity, not endpoint management.
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.
- ✗
VPC Flow Logs
Why it's wrong here
Flow Logs capture traffic, not enforce policies.
- ✓
AWS Config rules
Why this is correct
Config rules can evaluate whether VPC endpoints exist and trigger remediation.
Related concept
Standard ACLs match source addresses.
- ✓
AWS CloudFormation StackSets
Why this is correct
StackSets can deploy VPC endpoints across multiple accounts in an organization.
Related concept
Standard ACLs match source addresses.
- ✓
AWS Service Control Policies (SCPs)
Why this is correct
SCPs can restrict actions to enforce VPC endpoint usage.
Related concept
Standard ACLs match source addresses.
- ✗
AWS Transit Gateway
Why it's wrong here
Transit Gateway does not enforce endpoint usage.
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 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 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 ANS-C01 ACL questions on filtering logic and placement.
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Security, Compliance and Governance — This question tests Network Security, Compliance and Governance — Standard ACLs match source addresses..
What is the correct answer to this question?
The correct answer is: AWS Config rules — To centrally manage and enforce the use of VPC endpoints for S3 across all accounts in AWS Organizations, you can combine AWS Service Control Policies (SCPs) to allow or deny VPC endpoint creation at the organizational level, AWS CloudFormation StackSets to deploy VPC endpoints consistently across multiple accounts, and AWS Config rules to detect non-compliant resources such as missing VPC endpoints. Option B (AWS Config rules) is correct because it can evaluate compliance and trigger remediation. Option C (AWS CloudFormation StackSets) is correct because it automates deployment of VPC endpoints in target accounts. Option D (AWS SCPs) is correct because it enforces policies on endpoint creation. Option A (VPC Flow Logs) is wrong because it only logs traffic, not enforce policies. Option E (AWS Transit Gateway) is wrong because it provides network connectivity, not endpoint management.
What should I do if I get this ANS-C01 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 ANS-C01 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: Jun 20, 2026
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