- A
Create two VGWs and attach each to a separate Direct Connect connection. Use a Transit Gateway to connect the VGWs to the VPC.
Why wrong: A VPC can only have one VGW, and a Transit Gateway does not combine VGWs.
- B
Create a Direct Connect Gateway. Attach both Direct Connect connections to the Direct Connect Gateway. Associate the Direct Connect Gateway with the VGW. Configure the on-premises routers to use BGP with equal-cost multipath (ECMP).
This configuration allows both connections to be active-active, using all bandwidth and providing redundancy.
- C
Create two Virtual Private Gateways, one for each Direct Connect connection. Attach each VGW to the VPC. Configure BGP on both connections for active-active.
Why wrong: A VPC can only be associated with one VGW at a time.
- D
Create a single virtual interface and associate it with both Direct Connect connections. Attach the virtual interface to the VGW.
Why wrong: A virtual interface is associated with a single Direct Connect connection.
ANS-C01 Network Design Practice Question
This ANS-C01 practice question tests your understanding of network design. 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 with multiple AWS Direct Connect connections to multiple on-premises data centers. They want to maximize availability and use all available bandwidth. They have two Direct Connect connections terminated at two different Direct Connect locations. They plan to use a single Virtual Private Gateway (VGW) for each VPC. Which configuration should be used to meet these requirements?
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
Create a Direct Connect Gateway. Attach both Direct Connect connections to the Direct Connect Gateway. Associate the Direct Connect Gateway with the VGW. Configure the on-premises routers to use BGP with equal-cost multipath (ECMP).
Option B is correct because it uses a Direct Connect Gateway to aggregate multiple Direct Connect connections into a single logical endpoint, allowing both connections to be associated with a single VGW. By configuring BGP with ECMP on the on-premises routers, traffic is load-balanced across both connections, maximizing bandwidth utilization while providing high availability through redundant paths.
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.
- ✗
Create two VGWs and attach each to a separate Direct Connect connection. Use a Transit Gateway to connect the VGWs to the VPC.
Why it's wrong here
A VPC can only have one VGW, and a Transit Gateway does not combine VGWs.
- ✓
Create a Direct Connect Gateway. Attach both Direct Connect connections to the Direct Connect Gateway. Associate the Direct Connect Gateway with the VGW. Configure the on-premises routers to use BGP with equal-cost multipath (ECMP).
Why this is correct
This configuration allows both connections to be active-active, using all bandwidth and providing redundancy.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Create two Virtual Private Gateways, one for each Direct Connect connection. Attach each VGW to the VPC. Configure BGP on both connections for active-active.
Why it's wrong here
A VPC can only be associated with one VGW at a time.
- ✗
Create a single virtual interface and associate it with both Direct Connect connections. Attach the virtual interface to the VGW.
Why it's wrong here
A virtual interface is associated with a single Direct Connect connection.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often think multiple VGWs can be attached to a single VPC (Option C) or that a single virtual interface can span multiple physical connections (Option D), but AWS enforces a one-VGW-per-VPC limit and each virtual interface is tied to a single Direct Connect connection.
Detailed technical explanation
How to think about this question
A Direct Connect Gateway acts as a transit hub that can connect up to 10 Direct Connect connections to a single VGW, enabling active-active BGP sessions with ECMP. ECMP relies on BGP multipath, which requires the on-premises routers to have identical BGP attributes (e.g., AS_PATH, MED) for both paths to be considered equal; this is typically achieved by using the same BGP ASN and prefix advertisement. In a real-world scenario, if one Direct Connect location experiences an outage, BGP will automatically withdraw routes, and traffic will fail over to the remaining connection without manual intervention.
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 startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
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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: Create a Direct Connect Gateway. Attach both Direct Connect connections to the Direct Connect Gateway. Associate the Direct Connect Gateway with the VGW. Configure the on-premises routers to use BGP with equal-cost multipath (ECMP). — Option B is correct because it uses a Direct Connect Gateway to aggregate multiple Direct Connect connections into a single logical endpoint, allowing both connections to be associated with a single VGW. By configuring BGP with ECMP on the on-premises routers, traffic is load-balanced across both connections, maximizing bandwidth utilization while providing high availability through redundant paths.
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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