- A
Hosted virtual interface
Why wrong: Hosted VIF is provided by a partner.
- B
Public virtual interface
Why wrong: Public VIF is for AWS public services.
- C
Private virtual interface
Why wrong: Private VIF connects to a single VPC.
- D
Transit virtual interface
Transit VIF connects to Transit Gateway for multiple VPCs.
Question 237 of 1,705
ANS-C01 Network Implementation Practice Question
This ANS-C01 practice question tests your understanding of network implementation. 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. 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 is designing a hybrid network using AWS Direct Connect. They have two Direct Connect connections from different providers to two different AWS Direct Connect locations. They want to configure a virtual interface (VIF) that provides connectivity to multiple VPCs in the same region. Which type of VIF should they use?
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
✓
Transit virtual interface
A transit virtual interface (VIF) is the correct choice because it is specifically designed to connect a Direct Connect gateway to a single physical connection, enabling connectivity to multiple VPCs in the same or different AWS Regions. Unlike a private VIF, which only connects to a single VPC, a transit VIF works with a Direct Connect gateway and supports up to 3,000 VPC attachments per gateway, making it ideal for multi-VPC architectures.
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.
- ✗
Hosted virtual interface
Why it's wrong here
Hosted VIF is provided by a partner.
- ✗
Public virtual interface
Why it's wrong here
Public VIF is for AWS public services.
- ✗
Private virtual interface
Why it's wrong here
Private VIF connects to a single VPC.
- ✓
Transit virtual interface
Why this is correct
Transit VIF connects to Transit Gateway for multiple VPCs.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The ANS-C01 exam often tests the misconception that a private VIF can connect to multiple VPCs by using a Direct Connect gateway, but the private VIF is deprecated for that use case; only a transit VIF supports the Direct Connect gateway for multi-VPC connectivity.
Detailed technical explanation
How to think about this question
A transit VIF uses 802.1Q VLAN tagging and BGP to establish Layer 3 connectivity between an on-premises router and a Direct Connect gateway. The Direct Connect gateway acts as a hub, allowing transitive routing between the transit VIF and multiple virtual private gateways (VGWs) or transit gateways, with each VPC attachment requiring a separate BGP session. In real-world scenarios, this is critical for enterprises with hundreds of VPCs that need centralized, low-latency connectivity without provisioning separate private VIFs per VPC.
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 healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
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 Implementation — This question tests Network Implementation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Transit virtual interface — A transit virtual interface (VIF) is the correct choice because it is specifically designed to connect a Direct Connect gateway to a single physical connection, enabling connectivity to multiple VPCs in the same or different AWS Regions. Unlike a private VIF, which only connects to a single VPC, a transit VIF works with a Direct Connect gateway and supports up to 3,000 VPC attachments per gateway, making it ideal for multi-VPC architectures.
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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