ANS-C01 Network Implementation Practice Question
A company is designing a highly available network in AWS. They have two Direct Connect connections from different providers to two different AWS Direct Connect locations. They want to use BGP as the routing protocol. Which TWO actions should be taken to ensure high availability?
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
✓
Advertise the same on-premises prefixes over both connections with different AS_PATH prepend values
Options B and E are correct. B: Advertising the same on-premises prefixes over both connections with different AS_PATH prepend values allows you to influence inbound traffic path selection, favoring the connection with the shorter AS_PATH (less prepending). E: Configuring separate BGP sessions for each Direct Connect connection ensures that if one connection or BGP session fails, the other remains active, providing redundancy. Option A is wrong because BGP community values do not directly influence path selection; they are used for tagging and policy. Option C is wrong because jumbo frames affect MTU, not high availability. Option D is wrong because multiple virtual interfaces on a single connection create a single point of failure; separate connections are needed for high availability.
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 BGP community values for both connections
Why it's wrong here
Does not affect availability.
- ✓
Advertise the same on-premises prefixes over both connections with different AS_PATH prepend values
Why this is correct
Allows path selection and failover.
- ✗
Enable jumbo frames on both connections
Why it's wrong here
Jumbo frames improve performance, not availability.
- ✗
Configure multiple virtual interfaces on a single Direct Connect connection
Why it's wrong here
Single point of failure.
- ✓
Configure separate BGP sessions for each Direct Connect connection
Why this is correct
Provides independent routing paths.
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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.