ANS-C01 Network Management and Operations Practice Question
A company is migrating its on-premises data center to AWS and wants to use AWS Direct Connect for private connectivity. The network team plans to advertise the company's public IP prefixes to AWS via BGP. Which AWS resource must be configured to allow advertisement of these prefixes?
⚠ Common exam trap
It's easy for candidates to confuse private VIFs (used for VPC connectivity) with public VIFs (used for public IP reachability), assuming that any BGP session on Direct Connect can advertise public prefixes, but only the public VIF is designed for that purpose.
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
✓
A public virtual interface on the Direct Connect connection
A public virtual interface (VIF) on AWS Direct Connect allows BGP peering where you can advertise your public IP prefixes to AWS, enabling private connectivity to public AWS services. Private and transit VIFs do not support customer-originated public prefix advertisements.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
A VPN CloudHub topology
Why it's wrong here
VPN CloudHub is for VPN-based connectivity.
- ✓
A public virtual interface on the Direct Connect connection
Why this is correct
Public VIF is used to advertise public IP prefixes.
- ✗
A private virtual interface on the Direct Connect connection
Why it's wrong here
Private VIF is for VPC connectivity, not public prefixes.
- ✗
A transit virtual interface on the Direct Connect connection
Why it's wrong here
Transit VIF is for transit gateway attachments.
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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.