ANS-C01 Network Design Practice Question
A company has an AWS Direct Connect connection and wants to use it to access Amazon S3 buckets without traversing the public internet. Which virtual interface type should be used?
⚠ Common exam trap
Many exam-takers confuse 'private' with 'secure' and assume a private virtual interface is needed for any non-internet access, not realizing that public virtual interfaces are specifically designed for AWS public services and still provide private, dedicated connectivity over Direct Connect.
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
✓
Public virtual interface
A public virtual interface is the correct choice because it allows access to AWS public services, such as Amazon S3, over a Direct Connect connection without traversing the public internet. It uses the same BGP peering and routing policies as private virtual interfaces but directs traffic to the public IP address space of AWS services, ensuring traffic stays within the AWS global network.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Transit virtual interface
Why it's wrong here
Transit VIF is for connecting to a transit gateway.
- ✗
Hosted virtual interface
Why it's wrong here
Hosted VIF is a type of virtual interface provided by a partner, but it can be private or public; the question asks which type.
- ✗
Private virtual interface
Why it's wrong here
Private VIF is for accessing VPC resources, not public services like S3.
- ✓
Public virtual interface
Why this is correct
Public VIF provides access to public AWS services over Direct Connect.
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
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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.