ANS-C01 Global Accelerator Endpoint Groups Practice Question
A company uses AWS Global Accelerator to improve performance for a web application hosted on EC2 instances behind an Application Load Balancer (ALB) in a VPC. The Global Accelerator has an endpoint group in the us-east-1 Region with the ALB as an endpoint. Users in Asia report high latency. The company creates a new endpoint group in ap-southeast-1 and adds the same ALB (which is still in us-east-1). However, users in Asia still experience high latency. What should the network engineer do to reduce latency for Asian users?
⚠ Common exam trap
The trap is that the endpoint group with a different endpoint region cannot leverage the regional proximity; you must deploy the application locally.
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
✓
Add an additional ALB in ap-southeast-1 and add it as an endpoint in the ap-southeast-1 endpoint group
Global Accelerator routes traffic to the nearest endpoint group based on latency. However, if the endpoint (ALB) is only in us-east-1, traffic from Asia will still be forwarded to us-east-1 after reaching the ap-southeast-1 endpoint group because the endpoint itself is in us-east-1. To reduce latency, the company must deploy the application in ap-southeast-1 and add a local ALB as an endpoint in the ap-southeast-1 endpoint group. Option C correctly describes this. Option A is incorrect because the ALB cannot be in us-east-1 and serve as an endpoint for ap-southeast-1; endpoint group and endpoint must be in the same Region. Option B is incorrect because weighted routing does not change the physical location of the endpoint; the ALB is still distant. Option D uses CloudFront, which is a CDN, not a Global Accelerator solution, and does not reduce latency for the Global Accelerator use case.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Change the endpoint in ap-southeast-1 to use the same ALB but with a cross-Region VPC peering
Why it's wrong here
Global Accelerator endpoint must be in the same Region as the endpoint group.
- ✗
Configure Global Accelerator to use weighted routing to direct more traffic to ap-southeast-1
Why it's wrong here
Traffic already goes to nearest endpoint group, but the ALB is far.
- ✓
Add an additional ALB in ap-southeast-1 and add it as an endpoint in the ap-southeast-1 endpoint group
Why this is correct
Deploying locally reduces latency.
- ✗
Use Lambda@Edge to cache content at CloudFront edge locations in Asia
Why it's wrong here
CloudFront is different from Global Accelerator.
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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.