ANS-C01 Network Design Practice Question
A company is designing a network for a real-time gaming application that requires extremely low latency between players. The application will be deployed on EC2 instances in multiple AWS regions. Which AWS service provides the best latency performance by using the AWS global network and anycast IPs?
⚠ Common exam trap
Test-takers frequently confuse CloudFront's edge caching with Global Accelerator's network path optimization, but CloudFront does not use anycast IPs for dynamic traffic routing and cannot provide the same low-latency performance for real-time applications that require direct connections to backend servers.
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
✓
AWS Global Accelerator
AWS Global Accelerator uses the AWS global network and anycast IPs to route traffic to the optimal edge location, then over the AWS backbone to the nearest healthy endpoint. This minimizes internet hops and latency, making it ideal for real-time gaming applications that require consistent low latency across multiple 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.
- ✗
AWS Direct Connect
Why it's wrong here
For dedicated on-premises connectivity, not multi-region optimization.
- ✓
AWS Global Accelerator
Why this is correct
Uses anycast IPs and AWS global network for low latency.
- ✗
Amazon CloudFront
Why it's wrong here
Designed for content delivery, not real-time application traffic optimization.
- ✗
Amazon Route 53 Latency Routing
Why it's wrong here
DNS-based routing adds latency due to DNS resolution and TTL.
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Same concept, more angles
2 more ways 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 network for a real-time gaming application that requires the lowest possible latency across AWS Regions. The application uses UDP traffic. Which AWS service should be used to optimize traffic routing?
hard- A.AWS Direct Connect with multiple connections.
- ✓ B.AWS Global Accelerator.
- C.Amazon Route 53 with latency-based routing.
- D.Amazon CloudFront with custom origins.
Why B: AWS Global Accelerator uses the Anycast IP address concept to route UDP traffic over the AWS global network, minimizing latency by directing traffic to the nearest healthy endpoint. It is specifically designed for real-time applications like gaming that require low latency and jitter, and it supports UDP traffic natively.
Variation 2. A company is designing a network for a real-time gaming application that requires low latency and high throughput between game servers in multiple regions. The application uses UDP traffic. Which AWS service should be used to route traffic between regions?
hard- A.AWS Transit Gateway
- ✓ B.AWS Global Accelerator
- C.Amazon CloudFront
- D.Amazon Route 53
Why B: AWS Global Accelerator uses the Anycast IP address and the AWS global network to route UDP traffic from users to the optimal regional endpoint, minimizing latency and jitter. It is designed for real-time applications like gaming that require low-latency and high-throughput UDP traffic between regions, as it bypasses the public internet and leverages AWS's internal backbone.
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.