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Answer: Amazon ElastiCache for in-memory data caching.
The correct answer is A: Amazon ElastiCache for in-memory data caching. ElastiCache provides a fast, in-memory data store that can be accessed quickly and reliably by any of the EC2 instances behind the ELB. This makes it ideal for sharing session data across multiple servers, ensuring consistent and rapid data access regardless of which instance handles a request.
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In a distributed application using EC2 instances with an ELB, which storage option is most suitable for reliably sharing session data across multiple requests?
A
Amazon ElastiCache for in-memory data caching.
B
Amazon Elastic Block Store for persistent block storage.
C
Amazon EC2 Instance Store for instance-attached storage.
D
Root filesystem for local storage on the host.