Topic 1 Question 29

AWS Certified Solutions Architect - Associate

Topic 1 Question 29
A company provides a Voice over Internet Protocol (VoIP) service that uses UDP connections. The service consists of Amazon EC2 instances that run in an Auto Scaling group. The company has deployments across multiple AWS Regions. The company needs to route users to the Region with the lowest latency. The company also needs automated failover between Regions. Which solution will meet these requirements?
- Deploy a Network Load Balancer (NLB) and an associated target group. Associate the target group with the Auto Scaling group. Use the NLB as an AWS Global Accelerator endpoint in each Region.
- Deploy an Application Load Balancer (ALB) and an associated target group. Associate the target group with the Auto Scaling group. Use the ALB as an AWS Global Accelerator endpoint in each Region.
- Deploy a Network Load Balancer (NLB) and an associated target group. Associate the target group with the Auto Scaling group. Create an Amazon Route 53 latency record that points to aliases for each NLB. Create an Amazon CloudFront distribution that uses the latency record as an origin.
- Deploy an Application Load Balancer (ALB) and an associated target group. Associate the target group with the Auto Scaling group. Create an Amazon Route 53 weighted record that points to aliases for each ALB. Deploy an Amazon CloudFront distribution that uses the weighted record as an origin.
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- 正解だと思う選択肢: A
  agree with A, Global Accelerator has automatic failover and is perfect for this scenario with VoIP https://aws.amazon.com/global-accelerator/faqs/
  
  👍 27
  Six_Fingered_Jose2022/10/24
- 正解だと思う選択肢: A
  CloudFront uses Edge Locations to cache content while Global Accelerator uses Edge Locations to find an optimal pathway to the nearest regional endpoint. CloudFront is designed to handle HTTP protocol meanwhile Global Accelerator is best used for both HTTP and non-HTTP protocols such as TCP and UDP. so i think A is a better answer
  
  👍 19
  mouhannadhaj2022/11/04
- Answer A: Clearly explained AWS Global Accelerator used for RTC decreases latency and delivers greater Performance
  
  https://aws.amazon.com/blogs/networking-and-content-delivery/improving-real-time-communication-rtc-client-experience-with-aws-global-accelerator/
  
  👍 1
  Deepak_k2023/02/09
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