A multiplayer game backend uses TCP across several Regions. Players in some countries see slow connections because their resolvers cache DNS answers, and failover takes minutes. Which capability addresses this and is absent from latency-based DNS routing?
Show answer and explanation
Answer: B
Global Accelerator assigns two static anycast IP addresses. Client traffic enters the AWS global network at the nearest edge location and is routed to healthy endpoints in the chosen Regions. Because clients keep the same IP addresses, failover does not depend on DNS TTLs or resolver caches, which is why it is faster than DNS-based approaches.
Why the other options are wrong
- A. Domain registration is handled by Route 53 Domains and does not improve connection latency or speed up failover for TCP traffic.
- C. Certificate renewal is useful for TLS but does not change how traffic reaches Regions or how quickly it fails over when an endpoint is unhealthy.
- D. AWS charges for data transfer, and no service offers unlimited free transfer. Data pricing is also unrelated to how routing and failover behave.