ANS-C01 Network Design Practice Question
A company is designing a network for a high-traffic web application that must be highly available across multiple AWS Regions. The application uses Application Load Balancers (ALBs) in each region. Which TWO actions should be taken to route traffic to the nearest healthy endpoint?
⚠ Common exam trap
A common mix-up: candidates confuse latency-based routing with weighted routing or multi-value answer routing, assuming any DNS-based routing with health checks will automatically route to the nearest healthy endpoint, but only latency-based routing (or Global Accelerator) considers proximity.
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
✓
Use Amazon Route 53 latency-based routing with health checks
Route 53 latency-based routing directs traffic to the region with the lowest latency for the end user, and when combined with health checks, it ensures traffic is only sent to healthy ALBs. This meets the requirement of routing to the nearest healthy endpoint across multiple AWS Regions.
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 Amazon Route 53 weighted routing
Why it's wrong here
Weighted routing distributes traffic based on weights, not latency or health.
- ✓
Use Amazon Route 53 latency-based routing with health checks
Why this is correct
Latency routing sends traffic to the region with lowest latency, and health checks ensure only healthy ALBs receive traffic.
- ✗
Use Amazon Route 53 multi-value answer routing
Why it's wrong here
Multi-value answer routing returns multiple IPs and performs health checks, but does not consider latency.
- ✓
Use AWS Global Accelerator with endpoint groups in each region
Why this is correct
Global Accelerator uses anycast IPs and health checks to route traffic to the nearest healthy endpoint.
- ✗
Use Amazon Route 53 failover routing
Why it's wrong here
Failover routing is for active-passive setups, not for routing to the nearest healthy endpoint.
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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.