- A
The VPC route tables are not updated to include the Direct Connect route
Why wrong: Incorrect. For a public VIF, VPC route tables are not involved in routing traffic to S3.
- B
The public VIF is not associated with the VPC
Why wrong: Incorrect. Public VIFs are not associated with VPCs; they provide direct access to public services.
- C
A Direct Connect gateway is not attached to the VPC
Why wrong: Incorrect. Direct Connect gateways are used with private VIFs, not public VIFs.
- D
A VPC endpoint for S3 is not configured
Correct. If S3 traffic originates from a VPC, a VPC endpoint for S3 is needed to keep traffic private. Without it, traffic may take a suboptimal path over the internet.
Question 307 of 1,705
ANS-C01 Public VIF Practice Question
This ANS-C01 practice question tests your understanding of network management and operations. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. A key principle to apply: public VIF. 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 uses AWS Direct Connect with a public VIF to access Amazon S3. The network team notices that S3 traffic is taking a suboptimal path over the internet instead of the Direct Connect. Which configuration is MOST likely missing?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"most likely"Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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
✓
A VPC endpoint for S3 is not configured
For a public VIF, S3 traffic from on-premises uses the Direct Connect directly; VPC route tables are not involved. The missing configuration is on the on-premises router to route AWS public IPs to the Direct Connect, but among the options, the most likely missing configuration is that a VPC endpoint for S3 is not configured when accessing S3 from a VPC. Without a VPC endpoint, traffic from the VPC to S3 goes over the internet, causing a suboptimal path. Since the company uses a public VIF, they likely also have a VPC, and the missing VPC endpoint explains the suboptimal path.
Key principle: Public VIF
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The VPC route tables are not updated to include the Direct Connect route
Why it's wrong here
Incorrect. For a public VIF, VPC route tables are not involved in routing traffic to S3.
- ✗
The public VIF is not associated with the VPC
Why it's wrong here
Incorrect. Public VIFs are not associated with VPCs; they provide direct access to public services.
- ✗
A Direct Connect gateway is not attached to the VPC
Why it's wrong here
Incorrect. Direct Connect gateways are used with private VIFs, not public VIFs.
- ✓
A VPC endpoint for S3 is not configured
Why this is correct
Correct. If S3 traffic originates from a VPC, a VPC endpoint for S3 is needed to keep traffic private. Without it, traffic may take a suboptimal path over the internet.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Public VIF
Common exam traps
Common exam trap: answer the scenario, not the keyword
Candidates often think VPC route tables need updating for public VIF, but the real issue is on-premises routing or, in this case, missing VPC endpoint for S3.
Detailed technical explanation
How to think about this question
Treat this as a scenario question. Identify the problem, the constraint, and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Public VIF
- VPC Endpoint (Gateway)
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
Public VIF
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.
Review public VIF, then practise related ANS-C01 questions on the same topic to reinforce the concept.
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FAQ
Questions learners often ask
What does this ANS-C01 question test?
Network Management and Operations — This question tests Network Management and Operations — Public VIF.
What is the correct answer to this question?
The correct answer is: A VPC endpoint for S3 is not configured — For a public VIF, S3 traffic from on-premises uses the Direct Connect directly; VPC route tables are not involved. The missing configuration is on the on-premises router to route AWS public IPs to the Direct Connect, but among the options, the most likely missing configuration is that a VPC endpoint for S3 is not configured when accessing S3 from a VPC. Without a VPC endpoint, traffic from the VPC to S3 goes over the internet, causing a suboptimal path. Since the company uses a public VIF, they likely also have a VPC, and the missing VPC endpoint explains the suboptimal path.
What should I do if I get this ANS-C01 question wrong?
Review public VIF, then practise related ANS-C01 questions on the same topic to reinforce the concept.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Public VIF
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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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