ANS-C01 Network Management and Operations Practice Question
A company is using AWS Direct Connect with a private VIF to connect to a VPC. They want to ensure high availability by having a second Direct Connect connection. Which configuration provides the most resilient setup?
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
✓
Two Direct Connect connections from different providers to different Direct Connect locations.
Using two Direct Connect connections from different providers to different AWS Direct Connect locations eliminates single points of failure. A single provider outage or location failure will not disrupt connectivity. Option A is incorrect because two connections from the same provider to the same location share the same physical infrastructure, so a single failure can affect both. Option C is incorrect because a Site-to-Site VPN backup typically offers lower bandwidth and higher latency compared to Direct Connect, and it relies on the public internet, which is less reliable than a dedicated connection. Option D is incorrect because two private VIFs on a single Direct Connect connection still share the same physical link; a link failure impacts both VIFs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Two Direct Connect connections from the same provider to the same Direct Connect location with separate VIFs.
Why it's wrong here
Shared physical path and location create single points of failure.
- ✓
Two Direct Connect connections from different providers to different Direct Connect locations.
Why this is correct
Diverse paths provide maximum resilience.
- ✗
One Direct Connect connection and one Site-to-Site VPN as backup.
Why it's wrong here
VPN is a backup but not as resilient as two Direct Connects.
- ✗
One Direct Connect connection with two private VIFs.
Why it's wrong here
Single physical connection is a single point of failure.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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