ANS-C01 Network Design Practice Question
A network engineer 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 wants to minimize operational overhead. The on-premises network uses BGP to advertise routes to AWS. Which design meets these requirements?
⚠ Common exam trap
AWS often tests the misconception that multiple VIFs on a single connection or connections to the same location provide sufficient redundancy, but true high availability requires physical and geographic diversity at the connection level.
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, each with a private VIF to the same VPC. Use BGP over the VIFs.
Provisioning two Direct Connect connections to two different Direct Connect locations ensures physical and path diversity, eliminating single points of failure. Using BGP over the private VIFs allows dynamic route advertisement and automatic failover, meeting high availability requirements while minimizing operational overhead through managed BGP sessions.
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, each with a private VIF to the same VPC. Use BGP over the VIFs.
Why this is correct
This provides physical and logical diversity, achieving high availability with minimal operational overhead.
- ✗
Provision one Direct Connect connection with a private VIF and a site-to-site VPN connection as a backup.
Why it's wrong here
While this provides backup, it adds operational overhead with VPN, and the primary connection is still a single point of failure.
- ✗
Provision one Direct Connect connection with two virtual interfaces (VIFs) to the same AWS device.
Why it's wrong here
A single connection and device is a single point of failure.
- ✗
Provision two Direct Connect connections to the same Direct Connect location, both with private VIFs to the same VPC.
Why it's wrong here
Although two connections, they share the same location which could be a single point of failure (e.g., power outage).
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JA
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.