ANS-C01 Network Management and Operations Practice Question
This ANS-C01 practice question tests your understanding of network management and operations. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which THREE factors should be considered when designing a highly available AWS Site-to-Site VPN connection?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Enable BGP for dynamic route propagation
BGP (Border Gateway Protocol) enables dynamic route propagation across the VPN tunnels, allowing automatic failover and route convergence if one tunnel goes down. This is critical for high availability because it eliminates the need for manual route updates and supports path selection based on BGP attributes, ensuring traffic is rerouted through the remaining healthy tunnel.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 two VPN tunnels with the same customer gateway IP
Why it's wrong here
Using the same IP creates a single point of failure at the customer gateway.
✓
Enable BGP for dynamic route propagation
Why this is correct
BGP provides automatic failover and route propagation.
Related concept
Read the scenario before looking for a memorised answer.
✓
Use two VPN tunnels each with a different customer gateway IP
Why this is correct
This provides redundancy at the customer side.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use a single VPN tunnel with a static route
Why it's wrong here
Single tunnel is not highly available.
✓
Configure redundant customer gateways
Why this is correct
Redundant customer gateways ensure that if one fails, the other can take over.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
AWS often tests the misconception that using two tunnels with the same customer gateway IP (Option A) provides redundancy, but the trap is that this still creates a single point of failure at the customer gateway device itself, whereas true high availability requires separate customer gateway IPs (Option C) and redundant gateways (Option E).
Detailed technical explanation
How to think about this question
Under the hood, AWS Site-to-Site VPN supports up to two tunnels per VPN connection, each using a unique virtual private gateway (VGW) endpoint IP. When BGP is enabled, the tunnels establish eBGP peering sessions, and AWS advertises the VPC CIDR via BGP, while the customer gateway advertises its on-premises prefixes. BGP’s keepalive and hold timers (default 30 and 90 seconds) detect failures quickly, and route withdrawal triggers immediate failover to the alternate tunnel. In a real-world scenario, if the primary tunnel’s physical link fails, BGP withdraws the route, and traffic shifts to the secondary tunnel without manual intervention.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Network Management and Operations — This question tests Network Management and Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Enable BGP for dynamic route propagation — BGP (Border Gateway Protocol) enables dynamic route propagation across the VPN tunnels, allowing automatic failover and route convergence if one tunnel goes down. This is critical for high availability because it eliminates the need for manual route updates and supports path selection based on BGP attributes, ensuring traffic is rerouted through the remaining healthy tunnel.
What should I do if I get this ANS-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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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.
Question Discussion
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