- A
Attach a NAT Gateway to the private subnet and update the route table.
Why wrong: NAT Gateway still uses internet; not private.
- B
Install the CloudWatch agent on each instance and configure it to use a proxy.
Why wrong: Proxy would still need network path; doesn't solve private connectivity.
- C
Attach an Internet Gateway to the VPC and assign public IPs to instances.
Why wrong: This exposes instances to internet.
- D
Create a VPC Endpoint for CloudWatch (com.amazonaws.region.monitoring).
VPC Endpoint enables private connectivity to CloudWatch.
Question 925 of 1,616
Send CloudWatch Metrics from Private Subnet Using VPC Endpoint
This DVA-C02 practice question tests your understanding of development with aws services. 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 application running on Amazon EC2 instances in an Auto Scaling group processes messages from an SQS queue. The application runs in a private subnet and needs to send metrics to Amazon CloudWatch. How can the developer ensure the EC2 instances can send metrics 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 Endpoint for CloudWatch (com.amazonaws.region.monitoring).
Option D is correct because a VPC Endpoint for CloudWatch (com.amazonaws.region.monitoring) allows EC2 instances in a private subnet to send metrics to CloudWatch over the AWS network without traversing the internet. This is achieved by creating a Gateway Endpoint that routes traffic to CloudWatch via the VPC route table, ensuring private connectivity and avoiding the need for an internet gateway or NAT gateway.
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.
- ✗
Attach a NAT Gateway to the private subnet and update the route table.
- ✗
Install the CloudWatch agent on each instance and configure it to use a proxy.
Why it's wrong here
Proxy would still need network path; doesn't solve private connectivity.
- ✗
Attach an Internet Gateway to the VPC and assign public IPs to instances.
Why it's wrong here
This exposes instances to internet.
- ✓
Create a VPC Endpoint for CloudWatch (com.amazonaws.region.monitoring).
Why this is correct
VPC Endpoint enables private connectivity to CloudWatch.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse VPC Endpoints with NAT Gateways or Internet Gateways, mistakenly thinking that any outbound traffic to AWS services requires internet access, when in fact Gateway Endpoints provide private, internet-free connectivity for services like CloudWatch and S3.
Detailed technical explanation
How to think about this question
A VPC Gateway Endpoint for CloudWatch uses AWS PrivateLink to route traffic over the AWS backbone, leveraging route table entries with a prefix list for the CloudWatch service. Under the hood, the endpoint is a horizontally scaled, redundant, and highly available component that does not require an internet gateway, NAT, or VPN, and it supports IPv4 traffic only. In real-world scenarios, this is critical for compliance with data sovereignty or security policies that mandate no internet egress for sensitive workloads.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
Visual reference
What to study next
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FAQ
Questions learners often ask
What does this DVA-C02 question test?
Development with AWS Services — This question tests Development with AWS Services — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a VPC Endpoint for CloudWatch (com.amazonaws.region.monitoring). — Option D is correct because a VPC Endpoint for CloudWatch (com.amazonaws.region.monitoring) allows EC2 instances in a private subnet to send metrics to CloudWatch over the AWS network without traversing the internet. This is achieved by creating a Gateway Endpoint that routes traffic to CloudWatch via the VPC route table, ensuring private connectivity and avoiding the need for an internet gateway or NAT gateway.
What should I do if I get this DVA-C02 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.
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Last reviewed: Jul 4, 2026
This DVA-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 DVA-C02 exam.
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