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CLF-C02 Practice Question 88: Static IP Acceleration

AWS Certified Cloud Practitioner (CLF-C02) · Test 9 · question 8 of 10

Cloud Technology & Serviceshard

A multiplayer game runs its servers behind Network Load Balancers in two AWS Regions, and the game traffic uses UDP. Players around the world need consistent low latency. The game clients must connect to a small set of fixed IP addresses that never change, and traffic must shift automatically to the other Region if one becomes unhealthy. Which service should the company use?

Select one answer
Show answer and explanation

Answer:

  • A. AWS Global Accelerator

AWS Global Accelerator gives you static IP addresses, anycast from the AWS edge network, that stay assigned to the accelerator for as long as it exists. Traffic enters the AWS global network at the edge closest to the player and is routed to the optimal regional endpoint based on health, client location and policies. Endpoints can be Network Load Balancers, Application Load Balancers, EC2 instances or Elastic IP addresses. Because it reacts instantly to changes in endpoint health, traffic moves to the healthy Region automatically.

Option B, Amazon CloudFront, is a content delivery network for caching and delivering web content over HTTP and HTTPS. It is not built to carry real-time UDP game traffic to game servers. Option C, Route 53 latency-based routing, chooses a Region at the *DNS* level. Clients get different IP addresses, and they can keep using cached DNS answers after a failure, so it meets neither the fixed-IP nor the fast-failover requirement. Option D, Application Load Balancers, work only within one Region, handle HTTP and HTTPS rather than UDP, and don't provide global static IPs.

Reference: What is AWS Global Accelerator?

Practice Test 9 ›

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