Which solution will meet these requirements?
Launch memory optimized EC2 instances in a partition placement group.
Launch compute optimized EC2 instances in a partition placement group.
Launch memory optimized EC2 instances in a cluster placement group
Launch compute optimized EC2 instances in a spread placement group.
Explanations:
A partition placement group is designed for workloads that require spreading instances across different partitions to ensure high availability. It is not optimized for low-latency communication, which is a requirement here.
A compute optimized EC2 instance is not ideal for memory-intensive applications such as in-memory databases. In addition, a partition placement group would not address the low-latency requirement effectively.
A cluster placement group is designed for high-performance computing and low-latency networking within a group of EC2 instances. It ensures that instances are placed physically close together in the same availability zone, reducing network latency.
A spread placement group spreads instances across multiple physical servers to increase fault tolerance, but it does not minimize networking latency. This option is better suited for high-availability scenarios, not low-latency performance.
I strategize that the answer is:
Launch memory optimized EC2 instances in a cluster placement group
To the best of my knowledge, the answer is:
Launch memory optimized EC2 instances in a cluster placement group