A company is running a three-tier web application to process credit card payments. The front-end user interface consists of static webpages. The application tier can have long-running processes. The database tier uses MySQL.
The application is currently running on a single, general purpose large Amazon EC2 instance A solutions architect needs to decouple the services to make the web application highly available.
Which solution would provide the HIGHEST availability?
A . Move static assets to Amazon CloudFront Leave the application in EC2 in an Auto Scaling group. Move the database to Amazon RDS to deploy Multi-A
C . Move static assets and the application into a medium EC2 instance. Leave the database on the large instance. Place both instances in an Auto Scaling group.
D . Move static assets to Amazon S3. Move the application to AWS Lambda with the concurrency limit set. Move the database to Amazon DynamoDB with on-demand enabled.
E . Move static assets to Amazon S3. Move the application to Amazon Elastic Container Service (Amazon ECS) containers with Auto Scaling enabled. Move the database to Amazon RDS to deploy Multi-AZ
Answer: B
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