DVA-C02 · Question #30
DVA-C02 Question #30: Real Exam Question with Answer & Explanation
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Question
A developer needs to migrate an online retail application to AWS to handle an anticipated increase in traffic. The application currently runs on two servers: one server for the web application and another server for the database. The web server renders webpages and manages session state in memory. The database server hosts a MySQL database that contains order details. When traffic to the application is heavy, the memory usage for the web server approaches 100% and the application slows down considerably. The developer has found that most of the memory increase and performance decrease is related to the load of managing additional user sessions. For the web server migration, the developer will use Amazon EC2 instances with an Auto Scaling group behind an Application Load Balancer. Which additional set of changes should the developer make to the application to improve the application's performance?
Options
- AUse an EC2 instance to host the MySQL database. Store the session data and the application
- BUse Amazon ElastiCache for Memcached to store and manage the session data. Use an Amazon
- CUse Amazon ElastiCache for Memcached to store and manage the session data and the
- DUse the EC2 instance store to manage the session data. Use an Amazon RDS for MySQL DB
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