- A
Transit virtual interface
Why wrong: Transit VIF is for connecting to a transit gateway.
- B
Hosted virtual interface
Why wrong: Hosted VIF is a type of virtual interface provided by a partner, but it can be private or public; the question asks which type.
- C
Private virtual interface
Why wrong: Private VIF is for accessing VPC resources, not public services like S3.
- D
Public virtual interface
Public VIF provides access to public AWS services over Direct Connect.
Question 1,259 of 1,705
ANS-C01 Network Design Practice Question
This ANS-C01 practice question tests your understanding of network design. 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.
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?
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.
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.
- ✗
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.
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 '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.
Detailed technical explanation
How to think about this question
When using a public virtual interface, traffic to Amazon S3 is routed over the Direct Connect connection to the nearest AWS edge location, then through the AWS backbone to the S3 endpoint, bypassing the public internet. This leverages BGP to advertise the public IP prefixes of AWS services, and the traffic is subject to standard AWS data transfer pricing, which can be lower than internet-based transfer for high-volume workloads. A common real-world scenario is a hybrid storage architecture where on-premises applications use S3 for backup or data lakes, requiring consistent, low-latency access without internet dependency.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
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 |
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Design — This question tests Network Design — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: 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.
What should I do if I get this ANS-C01 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 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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