ANS-C01 Network Design Practice Question
A company is designing a hybrid network architecture that connects an on-premises data center to AWS using AWS Direct Connect. The company requires high availability and uses BGP for dynamic routing. The on-premises router supports BGP multipath. Which configuration ensures the highest availability for the Direct Connect connection?
⚠ Common exam trap
Many exam-takers confuse logical redundancy (multiple VLANs or virtual interfaces) with physical redundancy, assuming that multiple logical constructs on a single physical connection provide high availability, when in fact a single physical failure will take down all logical constructs.
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
✓
Provision two Direct Connect connections to two different Direct Connect locations and configure BGP multipath.
Provisioning two Direct Connect connections to two different Direct Connect locations eliminates single points of failure at the physical layer and the facility level. BGP multipath allows the on-premises router to load-balance traffic across both connections, maximizing availability by ensuring that if one connection or location fails, traffic continues over the other without relying on a slower failover mechanism like VPN.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Provision two Direct Connect connections to two different Direct Connect locations and configure BGP multipath.
Why this is correct
Physical diversity ensures high availability.
- ✗
Provision a single Direct Connect connection and a Site-to-Site VPN as a backup.
Why it's wrong here
Backup VPN is good but not highest availability; direct connect redundancy is better.
- ✗
Provision a single Direct Connect connection with two virtual interfaces.
Why it's wrong here
Single point of failure at the physical layer.
- ✗
Provision a single Direct Connect connection with multiple VLANs.
Why it's wrong here
VLANs are logical; physical path is still a single point of failure.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.