Q50. A company has released a new version of a website to target an audience in Asia and South America. The website's media assets are hosted on Amazon S3 and have an Amazon CloudFront distribution to improve end-user performance. However users are having a poor login experience the authentication service is only available in the us-east-1 AWS Region. How can the Solutions Architect improve the login experience and maintain high security and performance with minimal management overhead?
A.Replicate the setup in each new geography and use Amazon Route S3 geo- based routing to route traffic to the AWS Region closest to the users. B.Use an Amazon Route S3 weighted routing policy to route traffic to the CloudFront distribution. Use CloudFront cached HTTP methods to improve the user login experience. C.Use Amazon Lambda@Edge attached to the CloudFront viewer request trigger to authenticate and authorize users by maintaining a secure cookie token with a session expiry to improve the user experience in multiple geographies. D.Replicate the setup in each geography and use Network Load Balancers to route traffic to the authentication service running in the closest region to users.正确答案C
