ANS-C01 Network Design Practice Question
A company is designing a Direct Connect solution for high availability. Which of the following are best practices? (Select THREE.)
⚠ Common exam trap
It's easy for candidates to confuse logical redundancy (multiple virtual interfaces on one connection) with physical redundancy (multiple connections at different locations), leading them to select Option D as a valid high-availability solution.
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 at different locations.
Provisioning two Direct Connect connections at different locations ensures physical diversity, which is a fundamental requirement for high availability. If one data center or fiber path fails, the other connection can continue to carry traffic, preventing a single point of failure. This aligns with the AWS Well-Architected Framework's recommendation for redundant network paths.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use the same Direct Connect provider for both connections to simplify management.
Why it's wrong here
Using the same provider may share underlying infrastructure, reducing diversity.
- ✓
Provision two Direct Connect connections at different locations.
Why this is correct
Diverse locations provide physical redundancy.
- ✓
Configure Bidirectional Forwarding Detection (BFD) on the virtual interfaces.
Why this is correct
BFD provides fast failure detection.
- ✗
Use a single Direct Connect connection with multiple virtual interfaces.
Why it's wrong here
A single connection is a single point of failure.
- ✓
Use separate BGP sessions for each connection with different AS numbers if needed.
Why this is correct
Separate BGP sessions improve failover and routing control.
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Same concept, more angles
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Variation 1. A company is designing a Direct Connect solution for high availability. Which TWO actions meet the requirement for diverse physical paths?
medium- A.Provision two Direct Connect connections at the same Direct Connect location.
- ✓ B.Provision two Direct Connect connections at two different Direct Connect locations.
- ✓ C.Use a Transit Gateway with attachments to multiple Direct Connect gateways.
- D.Provision a single Direct Connect connection and use link aggregation (LAG).
- E.Use a single Direct Connect connection with a VPN backup.
Why B: Provisioning two Direct Connect connections at two different Direct Connect locations ensures physical path diversity, eliminating a single point of failure. Option C is correct because using a Transit Gateway with attachments to multiple Direct Connect gateways allows traffic to be routed over separate connections; when these connections are established at different Direct Connect locations, they provide the required diverse physical paths. (Note: The diversity comes from the connections being at different locations, not just from the use of Transit Gateway or multiple gateways.)
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.