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AWS Certified Advanced Networking - Specialty

  • Topic 1 Question 142

    An IoT company collects data from thousands of sensors that are deployed in the Unites States and South Asia. The sensors use a proprietary communication protocol that is built on UDP to send the data to a fleet of Amazon EC2 instances. The instances are in an Auto Scaling group and run behind a Network Load Balancer (NLB). The instances, Auto Scaling group, and NLB are deployed in the us-west-2 Region.

    Occasionally, the data from the sensors in South Asia gets lost in transit over the internet and does not reach the EC2 instances.

    Which solutions will resolve this issue?

    2 つ選択

    • Use AWS Global Accelerator with the existing NLB.

    • Create an Amazon CloudFront distribution. Specify the existing NLB as the origin.

    • Create a second deployment of the EC2 instances and the NLB in the ap-south-1 Region. Use an Amazon Route 53 latency routing policy to resolve to the Region that provides the least latency.

    • Create a second deployment of the EC2 instances and the NLB in the ap-south-1 Region. Use an Amazon Route 53 failover routing policy to resolve to an alternate Region in case packets are dropped.

    • Turn on enhanced networking on the EC2 instances by using the most recent Elastic Network Adapter (ENA) drivers.

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