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A company requires a scalable and highly available solution for their three-tier image-sharing application, with minimal changes to the existing application. The current setup includes Amazon EC2 instances for the front-end, application, and MySQL database layers.
A company requires a scalable and highly available solution for their three-tier image-sharing application, with minimal changes to the existing application. The current setup includes Amazon EC2 instances for the front-end, application, and MySQL database layers.
Explanation:
Option D provides a scalable and highly available solution with minimal changes to the existing setup. Using load-balanced, Multi-AZ AWS Elastic Beanstalk environments for both the front-end and application layers ensures high availability and automatic scaling. Moving the database to a Multi-AZ Amazon RDS instance offers high availability and reliability for the database. Using Amazon S3 to store and serve users’ images is cost-effective and scalable for handling image storage and serving. Therefore, option D meets the requirements most effectively.