- A
Create a VPC Interface Endpoint for CloudWatch Logs and attach it to the subnet.
Why wrong: Interface Endpoints are used for services that require PrivateLink; CloudWatch Logs supports Gateway Endpoint.
- B
Create a VPC Gateway Endpoint for CloudWatch Logs and update the route table.
Provides private connectivity to CloudWatch Logs.
- C
Assign a public IP to the EC2 instance and route directly to the internet.
Why wrong: Exposes the instance to the internet.
- D
Attach a NAT Gateway to the private subnet and route traffic to the internet.
Why wrong: Unnecessary cost and complexity.
Question 1,591 of 1,705
Using a VPC Gateway Endpoint for Private Access to CloudWatch Logs
This ANS-C01 practice question tests your understanding of network implementation. 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: vPC Gateway 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.
An application running on EC2 instances in a private subnet needs to send logs to Amazon CloudWatch Logs. Which step is essential to allow this communication without traversing the internet?
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 a VPC Gateway Endpoint for CloudWatch Logs and update the route table.
Amazon CloudWatch Logs is a public AWS service that is accessed via a VPC Gateway Endpoint, not an Interface Endpoint. VPC Gateway Endpoints are specifically designed for services like CloudWatch Logs, S3, and DynamoDB, and they use route table entries to provide private access. Interface Endpoints (PrivateLink) are used for other services, but CloudWatch Logs does not support Interface Endpoints. Therefore, Option B is correct and Option A is incorrect.
Key principle: VPC Gateway 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 a VPC Interface Endpoint for CloudWatch Logs and attach it to the subnet.
Why it's wrong here
Interface Endpoints are used for services that require PrivateLink; CloudWatch Logs supports Gateway Endpoint.
- ✓
Create a VPC Gateway Endpoint for CloudWatch Logs and update the route table.
Why this is correct
Provides private connectivity to CloudWatch Logs.
Related concept
VPC Gateway Endpoint
- ✗
Assign a public IP to the EC2 instance and route directly to the internet.
Why it's wrong here
Exposes the instance to the internet.
- ✗
Attach a NAT Gateway to the private subnet and route traffic to the internet.
Why it's wrong here
Unnecessary cost and complexity.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap is that candidates often assume CloudWatch Logs uses an Interface Endpoint like many other AWS services, but in fact, CloudWatch Logs requires a Gateway Endpoint.
Detailed technical explanation
How to think about this question
Gateway Endpoints work by adding a prefix list for the service (e.g., com.amazonaws.region.logs) to the VPC route table, directing traffic to the AWS network without leaving the AWS backbone. Unlike Interface Endpoints, Gateway Endpoints do not use ENIs or security groups; they rely on route table entries and IAM policies for access control. In practice, this means you must also ensure the instance's security group and the CloudWatch Logs log group's resource policy allow the traffic, but the essential network step is the Gateway Endpoint and route table update.
KKey Concepts to Remember
- VPC Gateway Endpoint
- CloudWatch Logs Private Connectivity
- Route Table Update
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
VPC Gateway Endpoint
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.
Review vPC Gateway 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 Implementation — This question tests Network Implementation — VPC Gateway Endpoint.
What is the correct answer to this question?
The correct answer is: Create a VPC Gateway Endpoint for CloudWatch Logs and update the route table. — Amazon CloudWatch Logs is a public AWS service that is accessed via a VPC Gateway Endpoint, not an Interface Endpoint. VPC Gateway Endpoints are specifically designed for services like CloudWatch Logs, S3, and DynamoDB, and they use route table entries to provide private access. Interface Endpoints (PrivateLink) are used for other services, but CloudWatch Logs does not support Interface Endpoints. Therefore, Option B is correct and Option A is incorrect.
What should I do if I get this ANS-C01 question wrong?
Review vPC Gateway Endpoint, then practise related ANS-C01 questions on the same topic to reinforce the concept.
What is the key concept behind this question?
VPC Gateway Endpoint
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Last reviewed: Jul 4, 2026
This ANS-C01 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 ANS-C01 exam.
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