- A
Create an interface VPC endpoint for SQS in each private subnet.
Correct. Creating an interface VPC endpoint for SQS in each private subnet allows EC2 instances to access SQS privately via AWS PrivateLink, avoiding NAT gateways and reducing costs.
- B
Create a gateway VPC endpoint for SQS in the VPC and update the route tables for the private subnets to include a route for the SQS prefix list pointing to the endpoint.
Why wrong: Incorrect. SQS does not support gateway VPC endpoints; gateway endpoints are only for Amazon S3 and DynamoDB.
- C
Set up an AWS Direct Connect connection to route SQS traffic directly.
Why wrong: Incorrect. AWS Direct Connect is used to connect on-premises networks to AWS, not for VPC-to-SQS traffic.
- D
Modify the network ACLs and security groups to allow traffic to SQS without going through the NAT gateway.
Why wrong: Incorrect. Network ACLs and security groups control traffic filtering but do not change the network path; traffic would still go through the NAT gateway.
ANS-C01 Interface VPC Endpoint Practice Question
This ANS-C01 practice question tests your understanding of network management and operations. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. A key principle to apply: interface VPC Endpoint. 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 has a VPC with multiple subnets across three Availability Zones. The VPC contains an Auto Scaling group of EC2 instances that process messages from an SQS queue. The instances are deployed in private subnets and need to access the SQS queue over the internet. The company wants to minimize data transfer costs and improve security by keeping traffic within the AWS network. The VPC has a NAT gateway in each AZ for outbound internet access. The network team has configured the route tables for the private subnets to send 0.0.0.0/0 traffic to the NAT gateway in the same AZ. However, the team notices that the EC2 instances are still using the NAT gateways to reach SQS, resulting in higher costs. What should the team do to ensure traffic to SQS stays within the AWS network?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"minimum / minimize"Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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
Create an interface VPC endpoint for SQS in each private subnet.
Option A is correct because SQS supports interface VPC endpoints (AWS PrivateLink), which allow EC2 instances in private subnets to access SQS privately without going through the internet or NAT gateways. Interface endpoints are deployed in the subnets and provide private IP addresses for the service. Gateway endpoints are not supported for SQS; they work only for S3 and DynamoDB. Therefore, to keep SQS traffic within the AWS network, create an interface VPC endpoint for SQS in each private subnet.
Key principle: Interface VPC Endpoint
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Create an interface VPC endpoint for SQS in each private subnet.
Why this is correct
Correct. Creating an interface VPC endpoint for SQS in each private subnet allows EC2 instances to access SQS privately via AWS PrivateLink, avoiding NAT gateways and reducing costs.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Interface VPC Endpoint
- ✗
Create a gateway VPC endpoint for SQS in the VPC and update the route tables for the private subnets to include a route for the SQS prefix list pointing to the endpoint.
Why it's wrong here
Incorrect. SQS does not support gateway VPC endpoints; gateway endpoints are only for Amazon S3 and DynamoDB.
- ✗
Set up an AWS Direct Connect connection to route SQS traffic directly.
Why it's wrong here
Incorrect. AWS Direct Connect is used to connect on-premises networks to AWS, not for VPC-to-SQS traffic.
- ✗
Modify the network ACLs and security groups to allow traffic to SQS without going through the NAT gateway.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many candidates mistakenly think SQS supports gateway VPC endpoints like S3 and DynamoDB, but SQS only supports interface endpoints (PrivateLink).
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
- Interface VPC Endpoint
- Gateway 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
Interface VPC Endpoint
Real-world example
How this comes up in practice
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
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.
Review interface VPC Endpoint, then practise related ANS-C01 questions on the same topic to reinforce the concept.
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Management and Operations — This question tests Network Management and Operations — Interface VPC Endpoint.
What is the correct answer to this question?
The correct answer is: Create an interface VPC endpoint for SQS in each private subnet. — Option A is correct because SQS supports interface VPC endpoints (AWS PrivateLink), which allow EC2 instances in private subnets to access SQS privately without going through the internet or NAT gateways. Interface endpoints are deployed in the subnets and provide private IP addresses for the service. Gateway endpoints are not supported for SQS; they work only for S3 and DynamoDB. Therefore, to keep SQS traffic within the AWS network, create an interface VPC endpoint for SQS in each private subnet.
What should I do if I get this ANS-C01 question wrong?
Review interface VPC Endpoint, then practise related ANS-C01 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Interface VPC Endpoint
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Last reviewed: Jun 20, 2026
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