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Answer: Establish an AWS Global Accelerator standard accelerator with a standard accelerator endpoint for the NLB in each new Region, and provide customers with the Global Accelerator IP address.
The correct answer is B. AWS Global Accelerator standard accelerators provide static IP addresses to users and automatically route traffic to the closest healthy endpoint. This ensures that customers are directed to the nearest AWS Region, meeting the requirement of both geographical proximity and providing static IP addresses. Options A and C involve Amazon CloudFront, which does not support NLB directly and requires providing IP address ranges of edge locations, which can change over time. Option D, while providing custom routing capabilities, does not address routing traffic based on geoproximity or health of the endpoint.
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A SaaS application operating on Amazon EC2 instances behind a Network Load Balancer (NLB) is being expanded to multiple AWS Regions. The application's EC2 instances are managed by an Auto Scaling group across three Availability Zones within a single AWS Region. To ensure secure access, customers need static IP addresses for allow lists. The solution must also direct customers to the nearest AWS Region automatically. Which AWS service configuration meets these requirements?
A
Set up an Amazon CloudFront distribution with a CloudFront origin group, including the NLB for each new Region, and provide customers with the IP address ranges of the distribution’s edge locations.
B
Establish an AWS Global Accelerator standard accelerator with a standard accelerator endpoint for the NLB in each new Region, and provide customers with the Global Accelerator IP address.
C
Configure an Amazon CloudFront distribution with a custom origin for the NLB in each new Region, and provide customers with the IP address ranges of the distribution’s edge locations.
D
Deploy an AWS Global Accelerator custom routing accelerator with a listener, adding the IP address and ports for the NLB in each new Region, and provide customers with the Global Accelerator IP address.