Which characteristics apply to the Elastic Server?

The Elastic Server is designed to provide flexibility and scalability in a distributed environment, which is best illustrated by its ability to be moved to any node in a cluster. This characteristic highlights the server's versatility in load balancing and resource allocation, as it allows for efficient distribution of workloads across different nodes.

Being able to shift the Elastic Server seamlessly to any node enhances operational efficiency, as system administrators can relocate resources in response to demand or failures without disrupting the overall performance of the cluster. This is particularly valuable in environments where workloads can fluctuate significantly, ensuring optimal resource utilization.

On the other hand, while some systems may require services to be individually installed on each node, the ability to move the Elastic Server negates this need for a rigid installation process. Additionally, while having an even number of instances might sometimes be a consideration for load balancing or redundancy in some contexts, it is not a strict requirement for the Elastic Server. The emphasis on mobility across the cluster underscores its primary characteristic in managing dynamic workloads effectively.