SAP-C02 Continuous Improvement for Existing Solutions Practice Question
A company runs a containerized application on Amazon ECS with Fargate. The application needs to access an Amazon S3 bucket that contains sensitive data. The security team requires that all traffic between the ECS tasks and S3 remain within the AWS network and not traverse the internet. What is the MOST secure way to meet this requirement?
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 S3 and attach it to the VPC.
Using a VPC endpoint for S3 (Gateway or Interface) ensures traffic stays within the AWS network. Option A is wrong because internet traffic goes over the public internet. Option B is wrong because a NAT gateway is for outbound internet, not private access to S3. Option D is wrong because S3 Transfer Acceleration uses the internet.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use an internet gateway and route traffic through a NAT gateway.
Why it's wrong here
Traffic would still leave the AWS network via the internet gateway.
- ✗
Enable S3 Transfer Acceleration on the bucket.
Why it's wrong here
Transfer Acceleration uses the internet.
- ✓
Create a VPC endpoint for S3 and attach it to the VPC.
Why this is correct
VPC endpoint enables private connectivity to S3 without internet.
- ✗
Use a NAT gateway and update the route table to direct S3 traffic to the NAT.
Why it's wrong here
NAT gateway is for outbound internet, not private access.
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 |
Go deeper
Related to this question
About these practice questions
One of 1,660 original SAP-C02 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SAP-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 SAP-C02 exam.