ANS-C01 Network Design Practice Question
A company is deploying a multi-tier web application across two AWS Regions with an active-passive failover architecture. The application uses Application Load Balancers (ALBs) in each Region, and traffic must be directed to the active Region using DNS. Which routing policy should be used for the Amazon Route 53 record set to achieve this?
⚠ Common exam trap
Watch out — candidates often confuse failover routing with latency or weighted routing, assuming that automatic failover can be achieved by simply distributing traffic, but only failover routing policy provides the health-check-driven active-passive behavior required for this architecture.
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
✓
Failover routing policy
The failover routing policy in Amazon Route 53 is designed specifically for active-passive failover architectures. It uses health checks to monitor the primary endpoint (active Region) and automatically routes traffic to the secondary endpoint (passive Region) only when the primary health check fails. This matches the requirement of directing traffic to the active Region using DNS.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Geolocation routing policy
Why it's wrong here
Geolocation routes based on user location, not for failover.
- ✓
Failover routing policy
Why this is correct
Failover routing policy is designed for active-passive failover configurations.
- ✗
Weighted routing policy
Why it's wrong here
Weighted routing distributes traffic based on weights, not for active-passive failover.
- ✗
Latency routing policy
Why it's wrong here
Latency routing does not provide failover based on health checks; it routes based on latency.
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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.