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Q77 Single choice

A company runs a web application on Amazon EC2 instances behind Application Load Balancers (ALBs) in the us-east-1 and eu-west-1 Regions. Users in Asia are experiencing high latency when they connect to the application.

During peak traffic periods, one Region occasionally approaches capacity while the other Region has excess capacity. The company currently uses Amazon Route 53 with latency-based routing. The company needs to reduce latency for users globally and quickly shift traffic between Regions during peak periods without relying on DNS changes. The company also needs protection against DDoS attacks.

Which solution will meet these requirements?

A
Configure Amazon CloudFront to use the ALBs as origins. Set up Regional caching behavior and origin failover.
B
Configure Route 53 to use geolocation routing policies to direct users in Asia to us-east-1.
C
Implement AWS Global Accelerator and configure the ALBs as endpoints in Regional endpoint groups. Use traffic dials or endpoint weights to shift traffic between Regions based on capacity, and configure health checks for automatic failover of unhealthy endpoints. Use the DDoS protection provided by AWS Shield Standard with Global Accelerator.
D
Deploy additional ALBs in ap-southeast-1. Implement Route 53 weighted routing to distribute traffic across the Regions.

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