Q35 — AWS SAA-C03 Ch.4

Question 35 of 105 | ← Chapter 4

Q230. A company provides a Voice over Internet Protocol (VolP) 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?

• A. 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 ✓
• B. 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.
• C. Deploy a Network Load Balancer (NLB) and an associated target group. Associate the target group with the Auto Scaling group. Create an Amazon Route 53latency record that points to aliases for each NLB.Create an Amazon CloudFront distribution that uses the latency record as an origin.
• D. 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.

Correct Answer: A. 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

Explanation

A. 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 would be the best solution to meet these requirements. Using an NLB as an endpoint for AWS Global Accelerator allows for traffic to be routed to the Region with the lowest latency, providing better user experience and performance. Additionally, since the service uses UDP connections, the NLB is a recommended load balancer type for this requirement. Option B suggests using an ALB, which is not recommended for UDP-based services. Option C suggests using Route 53 latency records and CloudFront, which may work for HTTP(S) traffic but not for UDP traffic. Option D proposes using a weighted record in Route 53 and CloudFront, which may not provide automatic failover between Regions when one Region fails or experiences issues. a .