An IoT company collects data from thousands of sensors in the United States and South Asia. The sensors send data over a proprietary UDP-based protocol to an Auto Scaling group of EC2 instances behind a Network Load Balancer in us-west-2. Occasionally sensor data from South Asia is lost on the internet and never reaches the EC2 instances. Which solutions will address the packet loss? (Choose two.)
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Correct answer: Use AWS Global Accelerator in front of the existing Network Load Balancer., Deploy a second set of EC2 instances and an NLB in ap-south-1, and use Amazon Route 53 latency-based routing to send traffic to the Region with the lowest latency..
Why this is the answer
AWS Global Accelerator improves availability and performance for global users by routing traffic through the AWS global network, reducing internet transit and potential packet loss. It uses static IP addresses that act as a fixed entry point to your application endpoints, such as Network Load Balancers. Deploying a second set of EC2 instances and an NLB in ap-south-1, combined with Amazon Route 53 latency-based routing, directs traffic to the closest and lowest-latency endpoint, minimizing the distance data travels over the public internet and thus reducing packet loss for South Asian sensors. CloudFront is for HTTP/HTTPS traffic, not UDP. Route 53 failover routing is for high availability, not primarily for reducing latency or packet loss for geographically dispersed users. Enhanced networking improves instance performance but doesn't address internet-level packet loss.
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