ANS-C01 Network Implementation Practice Question
A company is designing a multi-region architecture with an Application Load Balancer (ALB) in each region. They want to route users to the nearest healthy ALB using latency-based routing. Which AWS service should be used?
⚠ Common exam trap
AWS often tests the distinction between DNS-based latency routing (Route 53) and anycast-based traffic acceleration (Global Accelerator), where candidates mistakenly choose Global Accelerator because it also improves performance, but it does not perform per-request latency-based DNS routing to the nearest healthy ALB.
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 user traffic to the AWS region with the lowest network latency for the end user, based on latency measurements between the user and each region's resources. This matches the requirement to route users to the nearest healthy ALB, as Route 53 can evaluate health checks on the ALBs and only route to healthy endpoints.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Amazon Route 53 latency-based routing
Why this is correct
Latency-based routing routes users to the region with the lowest latency.
- ✗
Amazon CloudWatch
Why it's wrong here
CloudWatch is for monitoring and logging, not for routing.
- ✗
VPC Traffic Mirroring
Why it's wrong here
Traffic Mirroring is for capturing network traffic, not routing.
- ✗
AWS Global Accelerator
Why it's wrong here
Global Accelerator uses anycast IPs for static IPs and traffic optimization, but not specifically latency-based routing.
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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.