ANS-C01 Network Implementation Practice Question
A company is designing a multi-region architecture with an Application Load Balancer (ALB) in each region. They need to route traffic to the closest healthy endpoint. Which AWS service should be used for global load balancing?
⚠ Common exam trap
Many exam-takers confuse Route 53 latency-based routing with true global load balancing, not realizing that DNS-based routing is affected by client caching and does not provide real-time traffic steering or static IP addresses, which Global Accelerator uniquely offers.
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 AWS Global Accelerator with an endpoint group in each region.
AWS Global Accelerator uses the AWS global network to route traffic to the closest healthy endpoint via Anycast IP addresses and endpoint groups in each region. It provides static IP addresses and intelligent traffic distribution based on latency, health, and geography, making it ideal for multi-region ALB architectures requiring global load balancing.
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 a single Application Load Balancer in one region with cross-region VPC peering.
Why it's wrong here
ALB is regional and cannot span regions.
- ✓
Use AWS Global Accelerator with an endpoint group in each region.
Why this is correct
Global Accelerator provides anycast IP and routes to the closest healthy endpoint.
- ✗
Use Route 53 latency-based routing with health checks.
Why it's wrong here
DNS-based routing has caching and propagation delays.
- ✗
Use a Network Load Balancer in each region and Route 53 weighted routing.
Why it's wrong here
NLB is regional; weighted routing doesn't consider latency.
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Same concept, more angles
1 more way this is tested on ANS-C01
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. 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?
medium- ✓ A.Amazon Route 53 latency-based routing
- B.Amazon CloudWatch
- C.VPC Traffic Mirroring
- D.AWS Global Accelerator
Why A: 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.
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.