ANS-C01 Network Design Practice Question
A company is designing a multi-region active-active architecture with an Application Load Balancer in each region. Which service can route traffic to the closest ALB based on latency?
⚠ Common exam trap
Many candidates confuse AWS Global Accelerator's 'nearest endpoint' behavior with latency-based routing, but Global Accelerator uses Anycast to direct traffic to the closest edge location, not to the region with the lowest application latency, making Route 53 latency-based routing the correct answer for this specific use case.
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
✓
Amazon Route 53 latency-based routing
Amazon Route 53 latency-based routing directs traffic to the AWS region that provides the lowest latency for the end user, based on historical latency measurements between the user's ISP and each region. This makes it the correct choice for routing users to the closest Application Load Balancer in a multi-region active-active architecture.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
AWS Global Accelerator
Why it's wrong here
Global Accelerator uses Anycast IPs to route to the nearest endpoint, but not latency-based per request.
- ✓
Amazon Route 53 latency-based routing
Why this is correct
Route 53 latency routing directs users to the region with lowest latency.
- ✗
Application Load Balancer cross-zone load balancing
Why it's wrong here
Cross-zone balancing is within a region, not for multi-region routing.
- ✗
Amazon CloudFront
Why it's wrong here
CloudFront is a CDN, not a load balancer for dynamic content routing.
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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.