Quick Answer
The answer is AWS Direct Connect, as it provides a dedicated private connection between an on-premises data center and AWS with consistent, low-latency performance and native support for multiple VLANs through Virtual LANs (VLANs). This service bypasses the public internet entirely, ensuring predictable network behavior and bandwidth, which is essential for latency-sensitive workloads. On the AWS Certified Advanced Networking Specialty ANS-C01 exam, this question tests your understanding of hybrid networking architectures and the distinction between private and internet-based connectivity options. A common trap is confusing Direct Connect with a VPN, which uses the public internet and lacks consistent performance, or with VPC peering, which only connects VPCs, not on-premises networks. Remember the memory tip: “Direct Connect is the dedicated highway; VPN is the public road.”
This ANS-C01 practice question tests your understanding of network implementation. 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 wants to establish a dedicated, private connection between their on-premises data center and AWS. They require consistent, low-latency performance and support for multiple VLANs. Which AWS service should they use?
AWS Direct Connect
Direct Connect provides a dedicated private connection with VLAN support.
AWS Transit Gateway
Why wrong: Transit Gateway is a network transit hub, not a connection type.
AWS Site-to-Site VPN
Why wrong: VPN uses the public internet, not a dedicated connection.
VPC Peering
Why wrong: VPC Peering connects VPCs, not on-premises.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
AWS Direct Connect
AWS Direct Connect provides a dedicated private connection with consistent performance and support for multiple VLANs via Virtual LANs (VLANs). Option A is wrong because a VPN connection uses the public internet. Option C is wrong because VPC peering is for connecting VPCs. Option D is wrong because Transit Gateway is a hub for multiple VPCs and on-premises, but the private connection itself is Direct Connect.
Key principle: A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Common exam traps
A trunk being up does not prove every VLAN is crossing it. Check allowed VLAN lists, native VLAN mismatch, VLAN existence and access-port assignment.
Detailed technical explanation
VLAN questions usually combine access-port and trunking clues. The key is to identify whether the issue is local to one switchport, caused by the trunk, or caused by the VLAN not existing where it needs to exist.
Key takeaway
A trunk being up does not mean the VLAN is allowed across it. Always verify the allowed VLAN list and whether the VLAN exists on both switches.
Real-world example
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
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related ANS-C01 questions on switching, trunking, and access-port configuration.
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FAQ
Network Implementation — This question tests Network Implementation — Access ports place end devices into a single VLAN..
The correct answer is: AWS Direct Connect — AWS Direct Connect provides a dedicated private connection with consistent performance and support for multiple VLANs via Virtual LANs (VLANs). Option A is wrong because a VPN connection uses the public internet. Option C is wrong because VPC peering is for connecting VPCs. Option D is wrong because Transit Gateway is a hub for multiple VPCs and on-premises, but the private connection itself is Direct Connect.
Review VLAN allowed lists, native VLAN mismatch detection, and how to verify VLAN membership with show vlan brief and show interfaces trunk. Then practise related ANS-C01 questions on switching, trunking, and access-port configuration.
Access ports place end devices into a single VLAN.
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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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