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AWS Certified Solutions Architect - Professional · AWS
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Option B Creating a Standard Accelerator with multiple endpoints, one for each additional region, allows you to provide static IP addresses that can be used by customers to allow lists. The Global Accelerator IP address is essentially a global IP address that points to an accelerator endpoint. This means that regardless of the customer's location, traffic will be routed to the nearest edge location (determined by AWS's latency algorithms), which is typically located in the closest region. By providing customers with the Global Accelerator IP address, you can ensure that they can access your application from anywhere in the world.
B is correct
D - With a custom routing accelerator, Global Accelerator does not route traffic based on the geoproximity or health of the endpoint. A and C - Though it may work but the IP address list keeps on changing and we can use this only in internal AWS implementations where we have access to the prefix list of Cloudfront IPs B is the correct answer