Question 620 of 1,621
ANS-C01 Network Security, Compliance and Governance Practice Question
A security engineer needs to allow an EC2 instance in a private subnet to access an S3 bucket without traversing the internet. Which solution meets 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 Gateway Endpoint for S3.
A VPC Gateway Endpoint for S3 allows private connectivity between EC2 instances in a private subnet and S3 without traversing the internet. Option A is incorrect because an Internet Gateway provides internet access, not private connectivity to S3. Option B is incorrect because Direct Connect is typically used for hybrid connectivity between on-premises and AWS, not for EC2 to S3 within the same region. Option D is incorrect because a NAT gateway allows outbound internet traffic from private subnets, but traffic would still go over the internet, not privately.
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 an Internet Gateway to the VPC.
Why it's wrong here
Internet Gateway provides internet access, not private access to S3.
- ✗
Use AWS Direct Connect to connect to S3.
Why it's wrong here
Direct Connect is for on-premises, not for EC2 within AWS.
- ✓
Create a VPC Gateway Endpoint for S3.
Why this is correct
Provides private connectivity to S3 without internet.
- ✗
Deploy a NAT gateway in a public subnet and update the route table.
Why it's wrong here
NAT gateway routes traffic to the internet, not private.
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 |
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Last reviewed: Jun 20, 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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