ANS-C01 VPC Gateway Endpoint Practice Question
An application running on EC2 instances needs to access a DynamoDB table. The security team requires that traffic does not traverse the internet. Which solution should be used?
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 DynamoDB.
A VPC Gateway Endpoint for DynamoDB provides private connectivity without traversing the internet. Option B is incorrect because VPC Interface Endpoints are typically used for services like API Gateway, but DynamoDB does not support Interface Endpoints in the same way; DynamoDB uses Gateway Endpoints. Option C is incorrect because an Internet Gateway provides internet access, which violates the security requirement. Option D is incorrect because a NAT Gateway also enables internet outbound traffic, not private access to DynamoDB.
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 Gateway Endpoint for DynamoDB.
Why this is correct
Correct. A VPC Gateway Endpoint for DynamoDB allows private access to DynamoDB from within the VPC without going over the internet.
- ✗
Create a VPC Interface Endpoint for DynamoDB.
Why it's wrong here
Incorrect. VPC Interface Endpoints are used for services like API Gateway, but DynamoDB does not support Interface Endpoints; it uses Gateway Endpoints.
- ✗
Attach an Internet Gateway to the VPC.
Why it's wrong here
Incorrect. An Internet Gateway provides internet access to the VPC, which would expose traffic to the internet.
- ✗
Deploy a NAT gateway and update the route table.
Why it's wrong here
Incorrect. A NAT Gateway provides outbound internet access for private subnets, but it does not provide private access to DynamoDB; traffic would still go to the internet.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.